This task is identified by as the content contains sensitive information such as code security bugs, privacy leaks, etc., so it is only accessible to contributors of this repository.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
Inthe Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In theLinux kernel,the followingvulnerability has been resolved:net/sched:act_mpls: Fix warningduring failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32'type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN:NLA_BINARY Validation function called for the attribute.Allother Unused -but notethat it's a union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation ofthe attribute fails.Despite being of 'NLA_U32' type,theassociated 'min'/'max'fieldsin the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above commentand all other users of NLA_POLICY_VALIDATE_FN().As a result, move the lengthvalidation to the validation function.No regressions inMPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name:QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
IntheLinuxkernel,the followingvulnerabilityhas been resolved:net/sched: act_mpls: Fixwarning during failedattribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but hasavalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validationfunction called for the attribute. All other Unused-butnote thatit'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attributefails. Despite beingof 'NLA_U32' type, theassociated'min'/'max' fields in thepolicyare negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all otherusers of NLA_POLICY_VALIDATE_FN().As a result, move the length validationtothe validation function.No regressions in MPLS tests: #./tdc.py -ftc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 atlib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU StandardPC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused -but note that it's aunion"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As aresult, move the length validation to the validation function.No regressions in MPLS tests: #./tdc.py -f tc-tests/actions/mpls.json [...] #echo $? 0[1]WARNING: CPU: 0PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX +PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe TCA_MPLS_LABEL attribute is of NLA_U32 type, but has avalidation type of NLA_VALIDATE_FUNCTION . This is an invalidcombination according to the comment above struct nla_policy : Meaning of `validate field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused - but note that it s a union This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of NLA_U32 type, theassociated min / max fields in the policy are negative as they arealiased by the validate field.Fix by changing the attribute type to NLA_BINARY which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().As a result, move the length validation to the validation function.No regressions in MPLS tests: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0[1]WARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
| linux | | https://git.kernel.org/linus/9e17f99220d111ea031b44153fdfe364b0024ff2 | https://git.kernel.org/linus/2a2ea50870baa3fb4de0872c5b60828138654ca7 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:net/sched: act_mpls: Fix warning during failed attribute validationThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has avalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalidcombination according to the comment above 'struct nla_policy':"Meaning of `validate' field, use via NLA_POLICY_VALIDATE_FN: NLA_BINARY Validation function called for the attribute. All other Unused- but note that it'sa union"This can trigger the warning [1] in nla_get_range_unsigned() whenvalidation of the attribute fails. Despite being of 'NLA_U32' type, theassociated 'min'/'max' fields in the policy are negative as they arealiased by the 'validate' field.Fix by changing the attribute type to 'NLA_BINARY' which is consistentwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().Asa result, move the length validation to the validation function.No regressions in MPLS tests:# ./tdc.py -f tc-tests/actions/mpls.json [...]# echo $? 0[1]WARNING: CPU:0 PID: 17743 at lib/nlattr.c:118nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117Modules linked in:CPU:0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3Hardware name: QEMU Standard PC (i440FX+ PIIX, 1996), BIOSrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014RIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117[...]Call Trace: <TASK> __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x197/0x230 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcdThe Linux kernel CVE team has assigned CVE-2023-52906 to this issue.
