CVE-2026-80533

In the Linux kernel, the following vulnerability has been resolved: xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair LOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket tries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists. Unfortunately, it's possible for agi_bp to be null if the buffer verifier fails, so we have to use ragi->agi_bp (which skips verifier checks) instead.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce
https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d
https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081
https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-26 15:17

Updated : 2026-08-26 15:17

NVD link : CVE-2026-80533

Mitre link : CVE-2026-80533

CVE.ORG link : CVE-2026-80533

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-80533", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "43b4ecbc948a2e441804c9d7b772deb6b2e44e3d", "versionType": "git"}, {"status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03", "versionType": "git"}, {"status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081", "versionType": "git"}, {"status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "1e96a00e0d3a00be6e4f368b2f18e2d345f813ce", "versionType": "git"}], "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.105", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.46", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.10", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "defaultStatus": "affected"}]}], "published": "2026-08-26T15:17:07.410", "references": [{"url": "https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "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."}], "lastModified": "2026-08-26T15:17:07.410", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}