Riskcovery

CVE-2022-49786

blk-cgroup: properly pin the parent in blkcg_css_online

State
Published
Severity
Not scored
Published
May 1, 2025
Updated
May 11, 2026
Reserved
May 1, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

blk-cgroup: properly pin the parent in blkcg_css_online

blkcg_css_online is supposed to pin the blkcg of the parent, but 397c9f46ee4d refactored things and along the way, changed it to pin the css instead. This results in extra pins, and we end up leaking blkcgs and cgroups.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 397c9f46ee4d99024c64954b007c1b5762d01cb4 to before d118247e404d6338f7b90636a3c6b95a387ed163Affected
  • 397c9f46ee4d99024c64954b007c1b5762d01cb4 to before d7dbd43f4a828fa1d9a8614d5b0ac40aee6375feAffected
LinuxLinux
  • 5.19Affected
  • before 5.19Not affected
  • 6.0.10 through 6.0.*Not affected
  • 6.1 and laterNot affected

References

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