CVE-2024-26696— 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，该漏洞源于存在挂起问题。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 228742b2ddfb99dfd71e5a307e6088ab6836272e |
affected |
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 862ee4422c38be5c249844a684b00d0dbe9d1e46 |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 98a4026b22ff440c7f47056481bcbbe442f607d6 |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 7e9b622bd0748cc104d66535b76d9b3535f9dc0f |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 8494ba2c9ea00a54d5b50e69b22c55a8958bce32 |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< ea5ddbc11613b55e5128c85f57b08f907abd9b28 |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< e38585401d464578d30f5868ff4ca54475c34f7d |
affected | ||
1d1d1a767206fbe5d4c69493b7e6d2a8d08cc0a0< 38296afe3c6ee07319e01bb249aa4bb47c07b534 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-26696 基础信息
漏洞信息
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Vulnerability Title
nilfs2: fix hang in nilfs_lookup_dirty_data_buffers()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix hang in nilfs_lookup_dirty_data_buffers()
Syzbot reported a hang issue in migrate_pages_batch() called by mbind()
and nilfs_lookup_dirty_data_buffers() called in the log writer of nilfs2.
While migrate_pages_batch() locks a folio and waits for the writeback to
complete, the log writer thread that should bring the writeback to
completion picks up the folio being written back in
nilfs_lookup_dirty_data_buffers() that it calls for subsequent log
creation and was trying to lock the folio. Thus causing a deadlock.
In the first place, it is unexpected that folios/pages in the middle of
writeback will be updated and become dirty. Nilfs2 adds a checksum to
verify the validity of the log being written and uses it for recovery at
mount, so data changes during writeback are suppressed. Since this is
broken, an unclean shutdown could potentially cause recovery to fail.
Investigation revealed that the root cause is that the wait for writeback
completion in nilfs_page_mkwrite() is conditional, and if the backing
device does not require stable writes, data may be modified without
waiting.
Fix these issues by making nilfs_page_mkwrite() wait for writeback to
finish regardless of the stable write requirement of the backing device.
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，该漏洞源于存在挂起问题。
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-2024-26696 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-26696 邮件列表归档 (2)
CVE-2024-26696 其他参考 (8)
同批安全公告 · Linux · 2024-04-03 · 共 94 条
| CVE-2024-26760 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26779 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26689 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26692 | 8.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26736 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26704 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26728 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-52637 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26718 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26706 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26712 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26699 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26737 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26697 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26748 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26773 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26772 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26766 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26739 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26759 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 94 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-26696
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