{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"e822f535273af0e8968eab7acc0cea0b90dd25af","status":"affected","version":"7d1f0e167a067ed741dec08b7614d76893422b04","versionType":"git"},{"lessThan":"3b0c3414b308e6822cda90bf99f7eac94d4cca2b","status":"affected","version":"7d1f0e167a067ed741dec08b7614d76893422b04","versionType":"git"},{"lessThan":"d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f","status":"affected","version":"7d1f0e167a067ed741dec08b7614d76893422b04","versionType":"git"},{"lessThan":"268378b6ad20569af0d1957992de1c8b16c6e900","status":"affected","version":"7d1f0e167a067ed741dec08b7614d76893422b04","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2026-31556","cwes":[],"description":"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, 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.","epss":{"date":"2026-11-05","percentile":0.01985,"score":0.00122},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793915107864,"publishedAt":1777041339880,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25af"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2b"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900"}],"remediation":[],"revision":"b032902b053a6bc24af7d309287b2ae0c258d65b3016a1dedae573bc64bcf0e2","sources":[{"modifiedAt":1793915107864,"name":"CNA: Linux","retrievedAt":1793917097489,"url":"https://www.cve.org/CVERecord?id=CVE-2026-31556"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793917101703,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-31556"}],"ssvc":{"assessedAt":1793914728222,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"xfs: scrub: unlock dquot before early return in quota scrub","updatedAt":1793917101703}