{"id":"CVE-2026-31556","title":"xfs: scrub: unlock dquot before early return in quota scrub","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: scrub: unlock dquot before early return in quota scrub\n\nxchk_quota_item can return early after calling xchk_fblock_process_error.\nWhen that helper returns false, t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < e822f535273af0e8968eab7acc0cea0b90dd25af","Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < 3b0c3414b308e6822cda90bf99f7eac94d4cca2b","Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f","Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < 268378b6ad20569af0d1957992de1c8b16c6e900","Linux 6.8"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:38:48.222789Z"},"published":"2026-04-24","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:45:07.864Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31556","references":[{"url":"https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25af"},{"url":"https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2b"},{"url":"https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f"},{"url":"https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900"}],"tags":["cve.org"],"epss":0.00122,"epssPercentile":0.01991,"ingestedAt":"2026-11-05T23:41:31.968Z","slug":"CVE-2026-31556","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nxfs: scrub: unlock dquot before early return in quota scrub\n\nxchk_quota_item can return early after calling xchk_fblock_process_error.\nWhen that helper returns false, the function returned immediately without\ndropping dq->q_qlock, which can leave the dquot lock held and risk lock\nleaks or deadlocks in later quota operations.\n\nFix this by unlocking dq->q_qlock before the early return.\n\n## Affected\n\n- `Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < e822f535273af0e8968eab7acc0cea0b90dd25af`\n- `Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < 3b0c3414b308e6822cda90bf99f7eac94d4cca2b`\n- `Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f`\n- `Linux >= 7d1f0e167a067ed741dec08b7614d76893422b04 < 268378b6ad20569af0d1957992de1c8b16c6e900`\n- `Linux 6.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}