CVE-2022-48855

一、漏洞信息
 漏洞编号：[CVE-2022-48855](https://nvd.nist.gov/vuln/detail/CVE-2022-48855)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：7.1 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:sctp: fix kernel-infoleak for SCTP socketssyzbot reported a kernel infoleak [1] of 4 bytes.After analysis, it turned out r->idiag_expires is not initializedif inet_sctp_diag_fill() calls inet_diag_msg_common_fill()Make sure to clear idiag_timer/idiag_retrans/idiag_expiresand let inet_diag_msg_sctpasoc_fill() fill them again if needed.[1]BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline]BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 instrument_copy_to_user include/linux/instrumented.h:121 [inline] copyout lib/iov_iter.c:154 [inline] _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 copy_to_iter include/linux/uio.h:162 [inline] simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519 __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline] netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977 sock_recvmsg_nosec net/socket.c:948 [inline] sock_recvmsg net/socket.c:966 [inline] __sys_recvfrom+0x795/0xa10 net/socket.c:2097 __do_sys_recvfrom net/socket.c:2115 [inline] __se_sys_recvfrom net/socket.c:2111 [inline] __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xaeUninit was created at: slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3247 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1158 [inline] netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248 __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373 netlink_dump_start include/linux/netlink.h:254 [inline] inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341 sock_diag_rcv_msg+0x24a/0x620 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] sock_write_iter+0x594/0x690 net/socket.c:1061 do_iter_readv_writev+0xa7f/0xc70 do_iter_write+0x52c/0x1500 fs/read_write.c:851 vfs_writev fs/read_write.c:924 [inline] do_writev+0x645/0xe00 fs/read_write.c:967 __do_sys_writev fs/read_write.c:1040 [inline] __se_sys_writev fs/read_write.c:1037 [inline] __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xaeBytes 68-71 of 2508 are uninitializedMemory access of size 2508 starts at ffff888114f9b000Data copied to user address 00007f7fe09ff2e0CPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 漏洞公开时间：2024-07-16 21:15:12
 漏洞创建时间：2024-07-17 04:23:56
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-48855
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48855 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2022-48855 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48855.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2298196 | https://bugzilla.suse.com/show_bug.cgi?id=1228003 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2022-48855 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/linus/633593a808980f82d251d0ca89730d8bb8b0220c (5.17-rc8) | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2022-48855 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2022-48855 | https://ubuntu.com/security/CVE-2022-48855 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2022-48855 | https://ubuntu.com/security/CVE-2022-48855 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2022-48855 | https://explore.alas.aws.amazon.com/CVE-2022-48855.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-48855 | https://explore.alas.aws.amazon.com/CVE-2022-48855.html |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  其它
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83 |  | nvd |
|  |  | https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5 |  | nvd |
|  |  | https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7 |  | nvd |
|  |  | https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8 |  | nvd |
|  |  | https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c |  | nvd |
|  |  | https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545 |  | nvd |
|  |  | https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8 |  | nvd |
|  |  | https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08 |  | nvd |
| linux |  | https://git.kernel.org/linus/633593a808980f82d251d0ca89730d8bb8b0220c | https://git.kernel.org/linus/8f840e47f190cbe61a96945c13e9551048d42cef | 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:sctp: fix kernel-infoleak for SCTP socketssyzbot reported a kernel infoleak [1] of 4 bytes.After analysis, it turned out r->idiag_expires is not initializedif inet_sctp_diag_fill() calls inet_diag_msg_common_fill()Make sure to clear idiag_timer/idiag_retrans/idiag_expiresand let inet_diag_msg_sctpasoc_fill() fill them again if needed.[1]BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline]BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 instrument_copy_to_user include/linux/instrumented.h:121 [inline] copyout lib/iov_iter.c:154 [inline] _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 copy_to_iter include/linux/uio.h:162 [inline] simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519 __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline] netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977 sock_recvmsg_nosec net/socket.c:948 [inline] sock_recvmsg net/socket.c:966 [inline] __sys_recvfrom+0x795/0xa10 net/socket.c:2097 __do_sys_recvfrom net/socket.c:2115 [inline] __se_sys_recvfrom net/socket.c:2111 [inline] __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xaeUninit was created at: slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3247 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1158 [inline] netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248 __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373 netlink_dump_start include/linux/netlink.h:254 [inline] inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341 sock_diag_rcv_msg+0x24a/0x620 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] sock_write_iter+0x594/0x690 net/socket.c:1061 do_iter_readv_writev+0xa7f/0xc70 do_iter_write+0x52c/0x1500 fs/read_write.c:851 vfs_writev fs/read_write.c:924 [inline] do_writev+0x645/0xe00 fs/read_write.c:967 __do_sys_writev fs/read_write.c:1040 [inline] __se_sys_writev fs/read_write.c:1037 [inline] __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xaeBytes 68-71 of 2508 are uninitializedMemory access of size 2508 starts at ffff888114f9b000Data copied to user address 00007f7fe09ff2e0CPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 openEuler评分：
  7.1
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP1(5.10.0):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

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