CVE-2026-31556
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.
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900Patch
- https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2bPatch
- https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606fPatch
- https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25afPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.