CVE-2021-47598

一、漏洞信息
 漏洞编号：[CVE-2021-47598](https://nvd.nist.gov/vuln/detail/CVE-2021-47598)
 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 V2.0分值：
  BaseScore：0.0 Low
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:sch_cake: do not call cake_destroy() from cake_init()qdiscs are not supposed to call their own destroy() methodfrom init(), because core stack already does that.syzbot was able to trigger use after free:DEBUG_LOCKS_WARN_ON(lock->magic != lock)WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock_common kernel/locking/mutex.c:586 [inline]WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740Modules linked in:CPU: 0 PID: 21902 Comm: syz-executor189 Not tainted 5.16.0-rc4-syzkaller #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:586 [inline]RIP: 0010:__mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740Code: 08 84 d2 0f 85 19 08 00 00 8b 05 97 38 4b 04 85 c0 0f 85 27 f7 ff ff 48 c7 c6 20 00 ac 89 48 c7 c7 a0 fe ab 89 e8 bf 76 ba ff <0f> 0b e9 0d f7 ff ff 48 8b 44 24 40 48 8d b8 c8 08 00 00 48 89 f8RSP: 0018:ffffc9000627f290 EFLAGS: 00010282RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000RDX: ffff88802315d700 RSI: ffffffff815f1db8 RDI: fffff52000c4fe44RBP: ffff88818f28e000 R08: 0000000000000000 R09: 0000000000000000R10: ffffffff815ebb5e R11: 0000000000000000 R12: 0000000000000000R13: dffffc0000000000 R14: ffffc9000627f458 R15: 0000000093c30000FS:  0000555556abc400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007fda689c3303 CR3: 000000001cfbb000 CR4: 0000000000350ef0Call Trace: <TASK> tcf_chain0_head_change_cb_del+0x2e/0x3d0 net/sched/cls_api.c:810 tcf_block_put_ext net/sched/cls_api.c:1381 [inline] tcf_block_put_ext net/sched/cls_api.c:1376 [inline] tcf_block_put+0xbc/0x130 net/sched/cls_api.c:1394 cake_destroy+0x3f/0x80 net/sched/sch_cake.c:2695 qdisc_create.constprop.0+0x9da/0x10f0 net/sched/sch_api.c:1293 tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xaeRIP: 0033:0x7f1bb06badb9Code: Unable to access opcode bytes at RIP 0x7f1bb06bad8f.RSP: 002b:00007fff3012a658 EFLAGS: 00000246 ORIG_RAX: 000000000000002eRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1bb06badb9RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000003R10: 0000000000000003 R11: 0000000000000246 R12: 00007fff3012a688R13: 00007fff3012a6a0 R14: 00007fff3012a6e0 R15: 00000000000013c2 </TASK>
 漏洞公开时间：2024-06-19 23:15:54
 漏洞创建时间：2024-06-20 00:39:40
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-47598
<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/0d80462fbdcafd536dcad7569e65d3d14a7e9f2f |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/20ad1ef02f9ad5e1dda9eeb113e4c158b4806986 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4e388232e630ebe4f94b4a0715ec98c0e2b314a3 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ab443c53916730862cec202078d36fd4008bea79 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f6deae2e2d83bd267e1986f5d71d8c458e18fd99 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47598 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47598.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/stable/c/4e388232e630ebe4f94b4a0715ec98c0e2b314a3 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/stable/c/0d80462fbdcafd536dcad7569e65d3d14a7e9f2f | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/stable/c/20ad1ef02f9ad5e1dda9eeb113e4c158b4806986 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/stable/c/f6deae2e2d83bd267e1986f5d71d8c458e18fd99 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://git.kernel.org/stable/c/ab443c53916730862cec202078d36fd4008bea79 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2021-47598 | https://bugzilla.suse.com/show_bug.cgi?id=1226574 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024061921-CVE-2021-47598-3fad@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2293228 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2021-47598 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/linus/ab443c53916730862cec202078d36fd4008bea79 (5.16-rc6) | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/stable/c/4e388232e630ebe4f94b4a0715ec98c0e2b314a3 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/stable/c/0d80462fbdcafd536dcad7569e65d3d14a7e9f2f | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/stable/c/20ad1ef02f9ad5e1dda9eeb113e4c158b4806986 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/stable/c/f6deae2e2d83bd267e1986f5d71d8c458e18fd99 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://git.kernel.org/stable/c/ab443c53916730862cec202078d36fd4008bea79 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2021-47598 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2021-47598 | https://ubuntu.com/security/CVE-2021-47598 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2021-47598 | https://ubuntu.com/security/CVE-2021-47598 |
| cve_search |  | https://git.kernel.org/stable/c/4e388232e630ebe4f94b4a0715ec98c0e2b314a3 |
| cve_search |  | https://git.kernel.org/stable/c/0d80462fbdcafd536dcad7569e65d3d14a7e9f2f |
| cve_search |  | https://git.kernel.org/stable/c/20ad1ef02f9ad5e1dda9eeb113e4c158b4806986 |
| cve_search |  | https://git.kernel.org/stable/c/f6deae2e2d83bd267e1986f5d71d8c458e18fd99 |
| cve_search |  | https://git.kernel.org/stable/c/ab443c53916730862cec202078d36fd4008bea79 |

</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:
  openBrain开源漏洞感知系统
 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  |
| ------- | -------- | ------- | -------- | --------- |
| linux |  | https://git.kernel.org/linus/ab443c53916730862cec202078d36fd4008bea79 | https://git.kernel.org/linus/046f6fd5daefac7f5abdafb436b30f63bc7c602b | 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:sch_cake: do not call cake_destroy() from cake_init()qdiscs are not supposed to call their own destroy() methodfrom init(), because core stack already does that.syzbot was able to trigger use after free:DEBUG_LOCKS_WARN_ON(lock-&gt;magic != lock)WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock_common kernel/locking/mutex.c:586 [inline]WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740Modules linked in:CPU: 0 PID: 21902 Comm: syz-executor189 Not tainted 5.16.0-rc4-syzkaller #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:586 [inline]RIP: 0010:__mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740Code: 08 84 d2 0f 85 19 08 00 00 8b 05 97 38 4b 04 85 c0 0f 85 27 f7 ff ff 48 c7 c6 20 00 ac 89 48 c7 c7 a0 fe ab 89 e8 bf 76 ba ff &lt;0f&gt; 0b e9 0d f7 ff ff 48 8b 44 24 40 48 8d b8 c8 08 00 00 48 89 f8RSP: 0018:ffffc9000627f290 EFLAGS: 00010282RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000RDX: ffff88802315d700 RSI: ffffffff815f1db8 RDI: fffff52000c4fe44RBP: ffff88818f28e000 R08: 0000000000000000 R09: 0000000000000000R10: ffffffff815ebb5e R11: 0000000000000000 R12: 0000000000000000R13: dffffc0000000000 R14: ffffc9000627f458 R15: 0000000093c30000FS:  0000555556abc400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007fda689c3303 CR3: 000000001cfbb000 CR4: 0000000000350ef0Call Trace: &lt;TASK&gt; tcf_chain0_head_change_cb_del+0x2e/0x3d0 net/sched/cls_api.c:810 tcf_block_put_ext net/sched/cls_api.c:1381 [inline] tcf_block_put_ext net/sched/cls_api.c:1376 [inline] tcf_block_put+0xbc/0x130 net/sched/cls_api.c:1394 cake_destroy+0x3f/0x80 net/sched/sch_cake.c:2695 qdisc_create.constprop.0+0x9da/0x10f0 net/sched/sch_api.c:1293 tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xaeRIP: 0033:0x7f1bb06badb9Code: Unable to access opcode bytes at RIP 0x7f1bb06bad8f.RSP: 002b:00007fff3012a658 EFLAGS: 00000246 ORIG_RAX: 000000000000002eRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1bb06badb9RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000003R10: 0000000000000003 R11: 0000000000000246 R12: 00007fff3012a688R13: 00007fff3012a6a0 R14: 00007fff3012a6e0 R15: 00000000000013c2 &lt;/TASK&gt;The Linux kernel CVE team has assigned CVE-2021-47598 to this issue.     
 openEuler评分：
  3.9
 Vector：CVSS：2.0/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
 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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1862

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