CVE-2024-35854— 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，该漏洞源于内存释放后重用。
可能的 ATT&CK 技术 1 AI
T1211 · Exploitation for Stealth影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | c9c9af91f1d9a636aecc55302c792538e549a430< e118e7ea24d1392878ef85926627c6bc640c4388 |
affected |
c9c9af91f1d9a636aecc55302c792538e549a430< a429a912d6c779807f4d72a6cc0a1efaaa3613e1 |
affected | ||
c9c9af91f1d9a636aecc55302c792538e549a430< 4c89642ca47fb620914780c7c51d8d1248201121 |
affected | ||
c9c9af91f1d9a636aecc55302c792538e549a430< 813e2ab753a8f8c243a39ede20c2e0adc15f3887 |
affected | ||
c9c9af91f1d9a636aecc55302c792538e549a430< 311eeaa7b9e26aba5b3d57b09859f07d8e9fc049 |
affected | ||
c9c9af91f1d9a636aecc55302c792538e549a430< a02687044e124f8ccb427cd3632124a4e1a7d7c1 |
affected | ||
c9c9af91f1d9a636aecc55302c792538e549a430< 54225988889931467a9b55fdbef534079b665519 |
affected | ||
5.1 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2024-35854 基础信息
漏洞信息
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Vulnerability Title
mlxsw: spectrum_acl_tcam: Fix possible use-after-free 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 possible use-after-free during rehash
The rehash delayed work migrates filters from one region to another
according to the number of available credits.
The migrated from region is destroyed at the end of the work if the
number of credits is non-negative as the assumption is that this is
indicative of migration being complete. This assumption is incorrect as
a non-negative number of credits can also be the result of a failed
migration.
The destruction of a region that still has filters referencing it can
result in a use-after-free [1].
Fix by not destroying the region if migration failed.
[1]
BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230
Read of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858
CPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G W 6.9.0-rc2-custom-00782-gf2275c2157d8 #5
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
Call Trace:
<TASK>
dump_stack_lvl+0xc6/0x120
print_report+0xce/0x670
kasan_report+0xd7/0x110
mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230
mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70
mlxsw_sp_acl_atcam_entry_del+0x81/0x210
mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50
mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300
process_one_work+0x8eb/0x19b0
worker_thread+0x6c9/0xf70
kthread+0x2c9/0x3b0
ret_from_fork+0x4d/0x80
ret_from_fork_asm+0x1a/0x30
</TASK>
Allocated by task 174:
kasan_save_stack+0x33/0x60
kasan_save_track+0x14/0x30
__kasan_kmalloc+0x8f/0xa0
__kmalloc+0x19c/0x360
mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0
mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300
process_one_work+0x8eb/0x19b0
worker_thread+0x6c9/0xf70
kthread+0x2c9/0x3b0
ret_from_fork+0x4d/0x80
ret_from_fork_asm+0x1a/0x30
Freed by task 7:
kasan_save_stack+0x33/0x60
kasan_save_track+0x14/0x30
kasan_save_free_info+0x3b/0x60
poison_slab_object+0x102/0x170
__kasan_slab_free+0x14/0x30
kfree+0xc1/0x290
mlxsw_sp_acl_tcam_region_destroy+0x272/0x310
mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300
process_one_work+0x8eb/0x19b0
worker_thread+0x6c9/0xf70
kthread+0x2c9/0x3b0
ret_from_fork+0x4d/0x80
ret_from_fork_asm+0x1a/0x30
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于内存释放后重用。
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-2024-35854 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-35854 邮件列表归档 (1)
CVE-2024-35854 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 |
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IV. Related Vulnerabilities
V. Comments for CVE-2024-35854
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