CVE-2024-36889

一、漏洞信息
 漏洞编号：[CVE-2024-36889](https://nvd.nist.gov/vuln/detail/CVE-2024-36889)
 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：0.0 None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:mptcp: ensure snd_nxt is properly initialized on connectChristoph reported a splat hinting at a corrupted snd_una:  WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005  Modules linked in:  CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014  Workqueue: events mptcp_worker  RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005  Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8  	8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe  	<0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9  RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293  RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4  RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001  RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000  R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000  R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000  FS:  0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0  Call Trace:   <TASK>   __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]   mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]   __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615   mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767   process_one_work+0x1e0/0x560 kernel/workqueue.c:3254   process_scheduled_works kernel/workqueue.c:3335 [inline]   worker_thread+0x3c7/0x640 kernel/workqueue.c:3416   kthread+0x121/0x170 kernel/kthread.c:388   ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147   ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243   </TASK>When fallback to TCP happens early on a client socket, snd_nxtis not yet initialized and any incoming ack will copy such valueinto snd_una. If the mptcp worker (dumbly) tries mptcp-levelre-injection after such ack, that would unconditionally trigger a sendbuffer cleanup using  bad  snd_una values.We could easily disable re-injection for fallback sockets, but suchdumb behavior already helped catching a few subtle issues and a verylow to zero impact in practice.Instead address the issue always initializing snd_nxt (and write_seq,for consistency) at connect time.
 漏洞公开时间：2024-05-31 00:15:12
 漏洞创建时间：2024-06-02 20:34:14
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-36889
<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/39ca83ed73db9edcc6d70c0dc7a73085a4725012 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/99951b62bf20cec9247f633a3bea898338b9e5b4 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/dc941fec0719d0471a5902424d6b2a17df233193 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/fb7a0d334894206ae35f023a82cad5a290fd7386 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-36889 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-36889.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/99951b62bf20cec9247f633a3bea898338b9e5b4 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/dc941fec0719d0471a5902424d6b2a17df233193 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/39ca83ed73db9edcc6d70c0dc7a73085a4725012 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://git.kernel.org/stable/c/fb7a0d334894206ae35f023a82cad5a290fd7386 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-36889 | https://bugzilla.suse.com/show_bug.cgi?id=1225746 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024053033-CVE-2024-36889-222d@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2284571 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:5102 | https://bugzilla.redhat.com/show_bug.cgi?id=2284571 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:5101 | https://bugzilla.redhat.com/show_bug.cgi?id=2284571 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:6998 | https://bugzilla.redhat.com/show_bug.cgi?id=2284571 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:8162 | https://bugzilla.redhat.com/show_bug.cgi?id=2284571 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-36889 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/linus/fb7a0d334894206ae35f023a82cad5a290fd7386 (6.9-rc7) | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/99951b62bf20cec9247f633a3bea898338b9e5b4 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/dc941fec0719d0471a5902424d6b2a17df233193 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/39ca83ed73db9edcc6d70c0dc7a73085a4725012 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://git.kernel.org/stable/c/fb7a0d334894206ae35f023a82cad5a290fd7386 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6949-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6950-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6952-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6955-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6956-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6957-1 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6950-2 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6950-3 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6949-2 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6952-2 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://ubuntu.com/security/notices/USN-6950-4 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-36889 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-36889 | https://ubuntu.com/security/CVE-2024-36889 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-36889 | https://ubuntu.com/security/CVE-2024-36889 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-36889 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-36889 |
| mageia |  | http://advisories.mageia.org/MGASA-2024-0263.html |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2024-36889 | https://explore.alas.aws.amazon.com/CVE-2024-36889.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36889 | https://explore.alas.aws.amazon.com/CVE-2024-36889.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  |
| ------- | -------- | ------- | -------- | --------- |
| linux |  | https://git.kernel.org/linus/fb7a0d334894206ae35f023a82cad5a290fd7386 | https://git.kernel.org/linus/8fd738049ac3d67a937d36577763b47180aae1ad | 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:mptcp: ensure snd_nxt is properly initialized on connectChristoph reported a splat hinting at a corrupted snd_una:  WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005  Modules linked in:  CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014  Workqueue: events mptcp_worker  RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005  Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8  8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe  <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9  RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293  RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4  RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001  RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000  R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000  R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000  FS:  0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0  Call Trace:   <TASK>   __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]   mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]   __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615   mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767   process_one_work+0x1e0/0x560 kernel/workqueue.c:3254   process_scheduled_works kernel/workqueue.c:3335 [inline]   worker_thread+0x3c7/0x640 kernel/workqueue.c:3416   kthread+0x121/0x170 kernel/kthread.c:388   ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147   ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243   </TASK>When fallback to TCP happens early on a client socket, snd_nxtis not yet initialized and any incoming ack will copy such valueinto snd_una. If the mptcp worker (dumbly) tries mptcp-levelre-injection after such ack, that would unconditionally trigger a sendbuffer cleanup using  bad  snd_una values.We could easily disable re-injection for fallback sockets, but suchdumb behavior already helped catching a few subtle issues and a verylow to zero impact in practice.Instead address the issue always initializing snd_nxt (and write_seq,for consistency) at connect time. 
 openEuler评分：
  3.3
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
 受影响版本排查(受影响/不受影响)：
  1.openEuler-22.03-LTS-SP1(5.10.0):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS(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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2296

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