{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31556","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.115Z","datePublished":"2026-04-24T14:35:39.880Z","dateUpdated":"2026-05-11T22:11:04.289Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:11:04.289Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/quota.c"],"versions":[{"version":"7d1f0e167a067ed741dec08b7614d76893422b04","lessThan":"e822f535273af0e8968eab7acc0cea0b90dd25af","status":"affected","versionType":"git"},{"version":"7d1f0e167a067ed741dec08b7614d76893422b04","lessThan":"3b0c3414b308e6822cda90bf99f7eac94d4cca2b","status":"affected","versionType":"git"},{"version":"7d1f0e167a067ed741dec08b7614d76893422b04","lessThan":"d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f","status":"affected","versionType":"git"},{"version":"7d1f0e167a067ed741dec08b7614d76893422b04","lessThan":"268378b6ad20569af0d1957992de1c8b16c6e900","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/quota.c"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.80","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.21","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.11","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.19.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.0"}]}]}],"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"}],"title":"xfs: scrub: unlock dquot before early return in quota scrub","x_generator":{"engine":"bippy-1.2.0"}}}}