CVE-2024-50085

一、漏洞信息
 漏洞编号：[CVE-2024-50085](https://nvd.nist.gov/vuln/detail/CVE-2024-50085)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflowSyzkaller reported this splat:  ==================================================================  BUG: KASAN: slab-use-after-free in mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881  Read of size 4 at addr ffff8880569ac858 by task syz.1.2799/14662  CPU: 0 UID: 0 PID: 14662 Comm: syz.1.2799 Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014  Call Trace:   <TASK>   __dump_stack lib/dump_stack.c:94 [inline]   dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120   print_address_description mm/kasan/report.c:377 [inline]   print_report+0xc3/0x620 mm/kasan/report.c:488   kasan_report+0xd9/0x110 mm/kasan/report.c:601   mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881   mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:914 [inline]   mptcp_nl_remove_id_zero_address+0x305/0x4a0 net/mptcp/pm_netlink.c:1572   mptcp_pm_nl_del_addr_doit+0x5c9/0x770 net/mptcp/pm_netlink.c:1603   genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115   genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]   genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210   netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2551   genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219   netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]   netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357   netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901   sock_sendmsg_nosec net/socket.c:729 [inline]   __sock_sendmsg net/socket.c:744 [inline]   ____sys_sendmsg+0x9ae/0xb40 net/socket.c:2607   ___sys_sendmsg+0x135/0x1e0 net/socket.c:2661   __sys_sendmsg+0x117/0x1f0 net/socket.c:2690   do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]   __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386   do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411   entry_SYSENTER_compat_after_hwframe+0x84/0x8e  RIP: 0023:0xf7fe4579  Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00  RSP: 002b:00000000f574556c EFLAGS: 00000296 ORIG_RAX: 0000000000000172  RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000020000140  RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000  RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000  R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000  R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000   </TASK>  Allocated by task 5387:   kasan_save_stack+0x33/0x60 mm/kasan/common.c:47   kasan_save_track+0x14/0x30 mm/kasan/common.c:68   poison_kmalloc_redzone mm/kasan/common.c:377 [inline]   __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394   kmalloc_noprof include/linux/slab.h:878 [inline]   kzalloc_noprof include/linux/slab.h:1014 [inline]   subflow_create_ctx+0x87/0x2a0 net/mptcp/subflow.c:1803   subflow_ulp_init+0xc3/0x4d0 net/mptcp/subflow.c:1956   __tcp_set_ulp net/ipv4/tcp_ulp.c:146 [inline]   tcp_set_ulp+0x326/0x7f0 net/ipv4/tcp_ulp.c:167   mptcp_subflow_create_socket+0x4ae/0x10a0 net/mptcp/subflow.c:1764   __mptcp_subflow_connect+0x3cc/0x1490 net/mptcp/subflow.c:1592   mptcp_pm_create_subflow_or_signal_addr+0xbda/0x23a0 net/mptcp/pm_netlink.c:642   mptcp_pm_nl_fully_established net/mptcp/pm_netlink.c:650 [inline]   mptcp_pm_nl_work+0x3a1/0x4f0 net/mptcp/pm_netlink.c:943   mptcp_worker+0x15a/0x1240 net/mptcp/protocol.c:2777   process_one_work+0x958/0x1b30 kernel/workqueue.c:3229   process_scheduled_works kernel/workqueue.c:3310 [inline]   worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391   kthread+0x2c1/0x3a0 kernel/kthread.c:389   ret_from_fork+0x45/0x80 arch/x86/ke---truncated---
 漏洞公开时间：2024-10-29 09:15:05
 漏洞创建时间：2024-10-29 09:28:57
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-50085
<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/35301636439138b821f1f6169bd00d348ebd388a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-50085 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-50085.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/stable/c/35301636439138b821f1f6169bd00d348ebd388a | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-50085 | https://bugzilla.suse.com/show_bug.cgi?id=1232508 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024102938-CVE-2024-50085-7800@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2322307 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-50085 |
| cve_search |  | https://git.kernel.org/stable/c/35301636439138b821f1f6169bd00d348ebd388a |
| cve_search |  | https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9 |
| cve_search |  | https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1 |
| cve_search |  | https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538 |
| cve_search |  | https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689 |
| osv | https://git.kernel.org/stable/c/35301636439138b821f1f6169bd00d348ebd388a | https://osv.dev/vulnerability/CVE-2024-50085 |
| osv | https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1 | https://osv.dev/vulnerability/CVE-2024-50085 |
| osv | https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689 | https://osv.dev/vulnerability/CVE-2024-50085 |
| osv | https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538 | https://osv.dev/vulnerability/CVE-2024-50085 |
| osv | https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9 | https://osv.dev/vulnerability/CVE-2024-50085 |
| osv | https://security-tracker.debian.org/tracker/CVE-2024-50085 | https://osv.dev/vulnerability/CVE-2024-50085 |

</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/35301636439138b821f1f6169bd00d348ebd388a |  | nvd |
|  |  | https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1 |  | nvd |
|  |  | https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689 |  | nvd |
|  |  | https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538 |  | nvd |
|  |  | https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9 |  | nvd |
| linux_kernel | 5.15.169 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=353016364391Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=35b31f5549ed | linuxkernelcves |
| linux_kernel | 6.1.114 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=da3343bc0839Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=35b31f5549ed | linuxkernelcves |
| linux_kernel | 6.6.58 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7b2e478abab0Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=35b31f5549ed | linuxkernelcves |
| linux_kernel | 6.11.5 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a8c36ea4ef9aIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=35b31f5549ed | linuxkernelcves |
| linux_kernel | 6.12-rc4 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7decd1f5904aIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=35b31f5549ed | linuxkernelcves |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  Reserved.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-22.03-LTS-SP3(5.10.0):受影响
2.openEuler-22.03-LTS-SP4(5.10.0):受影响
3.openEuler-24.03-LTS(6.6.0):受影响
4.openEuler-24.03-LTS-SP1(6.6.0):受影响
5.openEuler-20.03-LTS-SP4(4.19.90):不受影响
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
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
  1.openEuler-22.03-LTS-SP3(5.10.0):正常修复
2.openEuler-22.03-LTS-SP4(5.10.0):正常修复
3.openEuler-24.03-LTS(6.6.0):正常修复
4.openEuler-24.03-LTS-SP1(6.6.0):正常修复
5.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2494

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