{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64256","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.773Z","datePublished":"2026-07-25T08:49:08.676Z","dateUpdated":"2026-08-17T04:52:08.656Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:52:08.656Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't wrap around quota ids in dqiterate\n\nLOLLM noticed that q_id is an unsigned 32-bit variable.  If it happens\nto be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot\nfor ID_MAX, then this addition will truncate to zero and the iteration\nstarts over.  Fix this by casting to u64."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/dqiterate.c"],"versions":[{"version":"21d7500929c8a0b10e22a6755850c6f9a9280284","lessThan":"249e311c2ba392ceaf9ebfc145a46922946f069a","status":"affected","versionType":"git"},{"version":"21d7500929c8a0b10e22a6755850c6f9a9280284","lessThan":"d1c4c40599c376aeb0c93068a2ae344e79ee4b90","status":"affected","versionType":"git"},{"version":"21d7500929c8a0b10e22a6755850c6f9a9280284","lessThan":"2b14fe1e0924c6b901f4256456342569c5397abe","status":"affected","versionType":"git"},{"version":"21d7500929c8a0b10e22a6755850c6f9a9280284","lessThan":"d766e4e5e85d829629c3ba503802fe1303d7b591","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/dqiterate.c"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.96","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.39","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.4","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/249e311c2ba392ceaf9ebfc145a46922946f069a"},{"url":"https://git.kernel.org/stable/c/d1c4c40599c376aeb0c93068a2ae344e79ee4b90"},{"url":"https://git.kernel.org/stable/c/2b14fe1e0924c6b901f4256456342569c5397abe"},{"url":"https://git.kernel.org/stable/c/d766e4e5e85d829629c3ba503802fe1303d7b591"}],"title":"xfs: don't wrap around quota ids in dqiterate","x_generator":{"engine":"bippy-1.2.0"}}}}