CVE-2024-56780— Linux kernel 安全漏洞
影响版本矩阵 26
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | d40c192e119892799dd4ddf94f5cea6fa93775ef< a5abba5e0e586e258ded3e798fe5f69c66fec198 | affected |
86d89987f0998c98f57d641e308b40452a994045< 6f3821acd7c3143145999248087de5fb4b48cf26 | affected | ||
89602de9a2d7080b7a4029d5c1bf8f78d295ff5f< ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb | affected | ||
3027e200dd58d5b437f16634dbbd355b29ffe0a6< 3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb | affected | ||
dabc8b20756601b9e1cc85a81d47d3f98ed4d13a< bcacb52a985f1b6d280f698a470b873dfe52728a | affected | ||
dabc8b20756601b9e1cc85a81d47d3f98ed4d13a< 8ea87e34792258825d290f4dc5216276e91cb224 | affected | ||
dabc8b20756601b9e1cc85a81d47d3f98ed4d13a< ac6f420291b3fee1113f21d612fa88b628afab5b | affected | ||
f3e9a2bbdeb8987508dd6bb2b701dea911d4daec | affected | ||
| … +18 条更多 | |||
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一、 漏洞 CVE-2024-56780 基础信息
漏洞信息
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Vulnerability Title
quota: flush quota_release_work upon quota writeback
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: quota: flush quota_release_work upon quota writeback One of the paths quota writeback is called from is: freeze_super() sync_filesystem() ext4_sync_fs() dquot_writeback_dquots() Since we currently don't always flush the quota_release_work queue in this path, we can end up with the following race: 1. dquot are added to releasing_dquots list during regular operations. 2. FS Freeze starts, however, this does not flush the quota_release_work queue. 3. Freeze completes. 4. Kernel eventually tries to flush the workqueue while FS is frozen which hits a WARN_ON since transaction gets started during frozen state: ext4_journal_check_start+0x28/0x110 [ext4] (unreliable) __ext4_journal_start_sb+0x64/0x1c0 [ext4] ext4_release_dquot+0x90/0x1d0 [ext4] quota_release_workfn+0x43c/0x4d0 Which is the following line: WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE); Which ultimately results in generic/390 failing due to dmesg noise. This was detected on powerpc machine 15 cores. To avoid this, make sure to flush the workqueue during dquot_writeback_dquots() so we dont have any pending workitems after freeze.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
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，该漏洞源于配额系统在冻结文件系统时，未始终刷新quota_release_work队列，可能导致在文件系统冻结状态下尝试启动事务，触发警告，影响文件系统的稳定性和性能。
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-2024-56780 的公开POC
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|---|
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CVE-2024-56780 补丁与修复 (7)
同批安全公告 · Linux · 2025-01-08 · 共 16 条
| CVE-2024-56770 | Linux kernel 安全漏洞 | |
| CVE-2024-56771 | Linux kernel 安全漏洞 | |
| CVE-2024-56773 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56772 | Linux kernel 资源管理错误漏洞 | |
| CVE-2024-56774 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56775 | Linux kernel 安全漏洞 | |
| CVE-2024-56776 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56777 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56778 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56779 | Linux kernel 安全漏洞 | |
| CVE-2024-56782 | Linux kernel 代码问题漏洞 | |
| CVE-2024-56783 | Linux kernel 安全漏洞 | |
| CVE-2024-56785 | Linux kernel 安全漏洞 | |
| CVE-2024-56784 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2024-56787 | Linux kernel 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2024-56780
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