Riskcovery

CVE-2026-80533

xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair

State
Published
Severity
Not scored
Published
Aug 26, 2026
Updated
Aug 26, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ab97f4b1c030750f2475bf4da8a9554d02206640 to before 43b4ecbc948a2e441804c9d7b772deb6b2e44e3dAffected
  • ab97f4b1c030750f2475bf4da8a9554d02206640 to before c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03Affected
  • ab97f4b1c030750f2475bf4da8a9554d02206640 to before a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081Affected
  • ab97f4b1c030750f2475bf4da8a9554d02206640 to before 1e96a00e0d3a00be6e4f368b2f18e2d345f813ceAffected
LinuxLinux
  • 6.10Affected
  • before 6.10Not affected
  • 6.12.105 through 6.12.*Not affected
  • 6.18.46 through 6.18.*Not affected
  • 7.1.10 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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