{"id":"CVE-2026-80533","state":"PUBLISHED","title":"xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair\n\nLOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket\ntries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists.\nUnfortunately, it's possible for agi_bp to be null if the buffer\nverifier fails, so we have to use ragi->agi_bp (which skips verifier\nchecks) instead.","publishedAt":"2026-08-26T14:37:09.785Z","updatedAt":"2026-08-26T14:37:09.785Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"43b4ecbc948a2e441804c9d7b772deb6b2e44e3d","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"1e96a00e0d3a00be6e4f368b2f18e2d345f813ce","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/agheader_repair.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.105","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/agheader_repair.c"]}],"references":["https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d","https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03","https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081","https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80533.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80533","state":"PUBLISHED","datePublished":"2026-08-26T14:37:09.785Z","dateUpdated":"2026-08-26T14:37:09.785Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.764Z"},"containers":{"cna":{"title":"xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair\n\nLOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket\ntries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists.\nUnfortunately, it's possible for agi_bp to be null if the buffer\nverifier fails, so we have to use ragi->agi_bp (which skips verifier\nchecks) instead."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"43b4ecbc948a2e441804c9d7b772deb6b2e44e3d","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081","versionType":"git"},{"version":"ab97f4b1c030750f2475bf4da8a9554d02206640","status":"affected","lessThan":"1e96a00e0d3a00be6e4f368b2f18e2d345f813ce","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/agheader_repair.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.105","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/xfs/scrub/agheader_repair.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d"},{"url":"https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03"},{"url":"https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081"},{"url":"https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-26T14:37:09.785Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.105"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.1.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}