CVE-2024-39301

一、漏洞信息
 漏洞编号：[CVE-2024-39301](https://nvd.nist.gov/vuln/detail/CVE-2024-39301)
 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 None
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:net/9p: fix uninit-value in p9_client_rpc()Syzbot with the help of KMSAN reported the following error:BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline]BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75If p9_check_errors() fails early in p9_client_rpc(), req->rc.tagwill not be properly initialized. However, trace_9p_client_res()ends up trying to print it out anyway before p9_client_rpc()finishes.Fix this issue by assigning default values to p9_fcall fieldssuch as  tag  and (just in case KMSAN unearths something new)  id during the tag allocation stage.
 漏洞公开时间：2024-06-25 23:15:14
 漏洞创建时间：2024-06-25 23:53:41
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-39301
<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/124947855564572713d705a13be7d0c9dae16a17 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-39301 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-39301 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-39301.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2294264 | https://bugzilla.suse.com/show_bug.cgi?id=1226994 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024062549-CVE-2024-39301-6610@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2294264 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-39301 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/linus/25460d6f39024cc3b8241b14c7ccf0d6f11a736a (6.10-rc2) | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-39301 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-39301 | https://ubuntu.com/security/CVE-2024-39301 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-39301 | https://ubuntu.com/security/CVE-2024-39301 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-39301 |

</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/25460d6f39024cc3b8241b14c7ccf0d6f11a736a | https://git.kernel.org/linus/348b59012e5c6402741d067cf6eeeb6271999d06 | 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:net/9p: fix uninit-value in p9_client_rpc()Syzbot with the help of KMSAN reported the following error:BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline]BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75If p9_check_errors() fails early in p9_client_rpc(), req->rc.tagwill not be properly initialized. However, trace_9p_client_res()ends up trying to print it out anyway before p9_client_rpc()finishes.Fix this issue by assigning default values to p9_fcall fieldssuch as  tag  and (just in case KMSAN unearths something new)  id during the tag allocation stage. 
 openEuler评分：
  5.5
 Vector：CVSS：2.0/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-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-24.03-LTS(6.6.0):受影响
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响
6.master(6.1.0):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-2024-1839

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