Vulnerability Monitor

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CVE-2024-0443

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.

Published

2024-01-12T00:15:45.230

Last Modified

2024-11-21T08:46:36.010

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-402
  • Type: Primary
    CWE-668
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System linux linux_kernel 6.4 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux 9.0 Yes
Operating System fedoraproject fedora 39 Yes
References