GHSA-rqh4-x2v7-j34g
GitHub Security Advisory
⚠ Unreviewed
MODERATE
Has CVE
Advisory Details
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.
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: June 18, 2025 6:25 AM
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