Bug 7900 - [Anolis OS 8] Bugfix for CVE-2024-0443
Summary: [Anolis OS 8] Bugfix for CVE-2024-0443
Status: NEW
Alias: None
Product: Anolis OS 8
Classification: Anolis OS
Component: BaseOS Packages (show other bugs) BaseOS Packages
Version: 8.6
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Jacob
QA Contact: shuming
URL:
Whiteboard:
Keywords: CVE
Depends on:
Blocks:
 
Reported: 2024-01-15 10:29 UTC by 小龙
Modified: 2024-01-15 10:29 UTC (History)
0 users

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Description 小龙 admin 2024-01-15 10:29:13 UTC 
Description:
A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of memory error.

Broken commit info:

Bugfix commit info:
https://github.com/torvalds/linux/commit/20cb1c2fb7568a6054c55defe044311397e01ddb