CVE-2026-31556
xfs: scrub: unlock dquot before early return in quota scrub
In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchk_quota_item can return early after calling xchk_fblock_process_error. When that helper returns false, the function returned immediately without dropping dq->q_qlock, which can leave the dquot lock held and risk lock leaks or deadlocks in later quota operations. Fix this by unlocking dq->q_qlock before the early return.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 7d1f0e167a067ed741dec08b7614d76893422b04; < e822f535273af0e8968eab7acc0cea0b90dd25af (affected, git) ≥ 7d1f0e167a067ed741dec08b7614d76893422b04; < 3b0c3414b308e6822cda90bf99f7eac94d4cca2b (affected, git) ≥ 7d1f0e167a067ed741dec08b7614d76893422b04; < d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f (affected, git) ≥ 7d1f0e167a067ed741dec08b7614d76893422b04; < 268378b6ad20569af0d1957992de1c8b16c6e900 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
6.8 (affected) ≥ 0; < 6.8 (unaffected, semver) ≥ 6.12.80; ≤ 6.12.* (unaffected, semver) ≥ 6.18.21; ≤ 6.18.* (unaffected, semver) ≥ 6.19.11; ≤ 6.19.* (unaffected, semver) ≥ 7.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25afCNA: Linux
- https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2bCNA: Linux
- https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606fCNA: Linux
- https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900CNA: Linux
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