CVE-2024-35853— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 mlxsw 存在内存泄露问题。
可能的 ATT&CK 技术 1 AI
T1059 · Command and Scripting Interpreter影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 843500518509128a935edab96bd8efef7c54669e< c6f3fa7f5a748bf6e5c4eb742686d6952f854e76 |
affected |
843500518509128a935edab96bd8efef7c54669e< 617e98ba4c50f4547c9eb0946b1cfc26937d70d1 |
affected | ||
843500518509128a935edab96bd8efef7c54669e< 413a01886c3958d4b8aac23a3bff3d430b92093e |
affected | ||
843500518509128a935edab96bd8efef7c54669e< b822644fd90992ee362c5e0c8d2556efc8856c76 |
affected | ||
843500518509128a935edab96bd8efef7c54669e< 0ae8ff7b6d42e33943af462910bdcfa2ec0cb8cf |
affected | ||
843500518509128a935edab96bd8efef7c54669e< b3fd51f684a0711504f82de510da109ae639722d |
affected | ||
843500518509128a935edab96bd8efef7c54669e< 8ca3f7a7b61393804c46f170743c3b839df13977 |
affected | ||
5.1 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2024-35853 基础信息
漏洞信息
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Vulnerability Title
mlxsw: spectrum_acl_tcam: Fix memory leak during rehash
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix memory leak during rehash
The rehash delayed work migrates filters from one region to another.
This is done by iterating over all chunks (all the filters with the same
priority) in the region and in each chunk iterating over all the
filters.
If the migration fails, the code tries to migrate the filters back to
the old region. However, the rollback itself can also fail in which case
another migration will be erroneously performed. Besides the fact that
this ping pong is not a very good idea, it also creates a problem.
Each virtual chunk references two chunks: The currently used one
('vchunk->chunk') and a backup ('vchunk->chunk2'). During migration the
first holds the chunk we want to migrate filters to and the second holds
the chunk we are migrating filters from.
The code currently assumes - but does not verify - that the backup chunk
does not exist (NULL) if the currently used chunk does not reference the
target region. This assumption breaks when we are trying to rollback a
rollback, resulting in the backup chunk being overwritten and leaked
[1].
Fix by not rolling back a failed rollback and add a warning to avoid
future cases.
[1]
WARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20
Modules linked in:
CPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G W 6.9.0-rc2-custom-00784-gc6a05c468a0b #14
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:parman_destroy+0x17/0x20
[...]
Call Trace:
<TASK>
mlxsw_sp_acl_atcam_region_fini+0x19/0x60
mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0
mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470
process_one_work+0x151/0x370
worker_thread+0x2cb/0x3e0
kthread+0xd0/0x100
ret_from_fork+0x34/0x50
ret_from_fork_asm+0x1a/0x30
</TASK>
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 mlxsw 存在内存泄露问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-35853 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-35853 邮件列表归档 (1)
CVE-2024-35853 其他参考 (7)
同批安全公告 · Linux · 2024-05-17 · 共 135 条
| CVE-2023-52687 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35843 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35804 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35811 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27416 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27415 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35856 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35834 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27404 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-52669 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35789 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35835 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35810 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35808 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-52667 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35798 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35839 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35792 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27403 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35791 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 135 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-35853
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