CVE-2024-44987

一、漏洞信息
 漏洞编号：[CVE-2024-44987](https://nvd.nist.gov/vuln/detail/CVE-2024-44987)
 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：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:ipv6: prevent UAF in ip6_send_skb()syzbot reported an UAF in ip6_send_skb() [1]After ip6_local_out() has returned, we no longer can safelydereference rt, unless we hold rcu_read_lock().A similar issue has been fixed in commita688caa34beb ( ipv6: take rcu lock in rawv6_send_hdrinc() )Another potential issue in ip6_finish_output2() is handled in aseparate patch.[1] BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024Call Trace: <TASK>  __dump_stack lib/dump_stack.c:93 [inline]  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119  print_address_description mm/kasan/report.c:377 [inline]  print_report+0x169/0x550 mm/kasan/report.c:488  kasan_report+0x143/0x180 mm/kasan/report.c:601  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926  sock_sendmsg_nosec net/socket.c:730 [inline]  __sock_sendmsg+0x1a6/0x270 net/socket.c:745  sock_write_iter+0x2dd/0x400 net/socket.c:1160 do_iter_readv_writev+0x60a/0x890  vfs_writev+0x37c/0xbb0 fs/read_write.c:971  do_writev+0x1b1/0x350 fs/read_write.c:1018  do_syscall_x64 arch/x86/entry/common.c:52 [inline]  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f936bf79e79Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8 </TASK>Allocated by task 6530:  kasan_save_stack mm/kasan/common.c:47 [inline]  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68  unpoison_slab_object mm/kasan/common.c:312 [inline]  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338  kasan_slab_alloc include/linux/kasan.h:201 [inline]  slab_post_alloc_hook mm/slub.c:3988 [inline]  slab_alloc_node mm/slub.c:4037 [inline]  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044  dst_alloc+0x12b/0x190 net/core/dst.c:89  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898  sock_sendmsg_nosec net/socket.c:730 [inline]  __sock_sendmsg+0x1a6/0x270 net/socket.c:745  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597  ___sys_sendmsg net/socket.c:2651 [inline]  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680  do_syscall_x64 arch/x86/entry/common.c:52 [inline]  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fFreed by task 45:  kasan_save_stack mm/kasan/common.c:47 [inline]  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256  kasan_slab_free include/linux/kasan.h:184 [inline]  slab_free_hook mm/slub.c:2252 [inline]  slab_free mm/slub.c:4473 [inline]  kmem_cache_free+0x145/0x350 mm/slub.c:4548  dst_destroy+0x2ac/0x460 net/core/dst.c:124  rcu_do_batch kernel/rcu/tree.c:2569 [inline]  rcu_core+0xafd/0x1830 kernel/rcu/tree.---truncated---
 漏洞公开时间：2024-09-05 04:15:07
 漏洞创建时间：2024-09-05 12:35:24
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-44987
<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/24e93695b1239fbe4c31e224372be77f82dab69a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-44987 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-44987 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-44987.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2309850 | https://bugzilla.suse.com/show_bug.cgi?id=1230185 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024090446-CVE-2024-44987-f916@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2309850 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-44987 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/linus/faa389b2fbaaec7fd27a390b4896139f9da662e3 (6.11-rc5) | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-44987 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-44987 | https://ubuntu.com/security/CVE-2024-44987 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-44987 | https://ubuntu.com/security/CVE-2024-44987 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-44987 |

</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  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a |  | nvd |
|  |  | https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429 |  | nvd |
|  |  | https://git.kernel.org/stable/c/9a3e55afa95ed4ac9eda112d4f918af645d72f25 |  | nvd |
|  |  | https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011 |  | nvd |
|  |  | https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e |  | nvd |
|  |  | https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8 |  | nvd |
|  |  | https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2 |  | nvd |
|  |  | https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3 |  | nvd |
| linux |  | https://git.kernel.org/linus/faa389b2fbaaec7fd27a390b4896139f9da662e3 | https://git.kernel.org/linus/0625491493d9000e4556bf566d205c28c8e7dc4e | 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:ipv6: prevent UAF in ip6_send_skb()syzbot reported an UAF in ip6_send_skb() [1]After ip6_local_out() has returned, we no longer can safelydereference rt, unless we hold rcu_read_lock().A similar issue has been fixed in commita688caa34beb (&#34;ipv6: take rcu lock in rawv6_send_hdrinc()&#34;)Another potential issue in ip6_finish_output2() is handled in aseparate patch.[1] BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024Call Trace: &lt;TASK&gt;  __dump_stack lib/dump_stack.c:93 [inline]  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119  print_address_description mm/kasan/report.c:377 [inline]  print_report+0x169/0x550 mm/kasan/report.c:488  kasan_report+0x143/0x180 mm/kasan/report.c:601  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926  sock_sendmsg_nosec net/socket.c:730 [inline]  __sock_sendmsg+0x1a6/0x270 net/socket.c:745  sock_write_iter+0x2dd/0x400 net/socket.c:1160 do_iter_readv_writev+0x60a/0x890  vfs_writev+0x37c/0xbb0 fs/read_write.c:971  do_writev+0x1b1/0x350 fs/read_write.c:1018  do_syscall_x64 arch/x86/entry/common.c:52 [inline]  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f936bf79e79Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 &lt;48&gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8 &lt;/TASK&gt;Allocated by task 6530:  kasan_save_stack mm/kasan/common.c:47 [inline]  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68  unpoison_slab_object mm/kasan/common.c:312 [inline]  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338  kasan_slab_alloc include/linux/kasan.h:201 [inline]  slab_post_alloc_hook mm/slub.c:3988 [inline]  slab_alloc_node mm/slub.c:4037 [inline]  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044  dst_alloc+0x12b/0x190 net/core/dst.c:89  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898  sock_sendmsg_nosec net/socket.c:730 [inline]  __sock_sendmsg+0x1a6/0x270 net/socket.c:745  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597  ___sys_sendmsg net/socket.c:2651 [inline]  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680  do_syscall_x64 arch/x86/entry/common.c:52 [inline]  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fFreed by task 45:  kasan_save_stack mm/kasan/common.c:47 [inline]  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256  kasan_slab_free include/linux/kasan.h:184 [inline]  slab_free_hook mm/slub.c:2252 [inline]  slab_free mm/slub.c:4473 [inline]  kmem_cache_free+0x145/0x350 mm/slub.c:4548  dst_destroy+0x2ac/0x460 net/core/dst.c:124  rcu_do_batch kernel/rcu/tree.c:2569 [inline]  rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2843  handle_softirqs+0x2c4/0x970 kernel/softirq.c:554  __do_softirq kernel/softirq.c:588 [inline]  invoke_softirq kernel/softirq.c:428 [inline]  __irq_exit_rc
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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):受影响
3.openEuler-22.03-LTS-SP3(5.10.0):受影响
4.openEuler-22.03-LTS-SP4(5.10.0):受影响
5.openEuler-24.03-LTS(6.6.0):受影响
6.master(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(6.6.0):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-HotPatchSA-2024-1035

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