CVE-2026-31556

kernel: xfs: scrub: unlock dquot before early return in quota scrub

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 24, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's XFS filesystem component. During quota scrubbing, the xchk_quota_item function could exit prematurely without releasing a critical lock. This can result in lock leaks or deadlocks in subsequent quota operations, potentially leading to system instability or a Denial of Service (DoS) condition.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime