What’s Vulnerable › Vulnerabilities

CVE-2026-80533: xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-26 · updated 2026-08-26

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.

Affected products

• Linux kernel: 6.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• 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

Get alerted when CVE-2026-80533 or the next vulnerability affects your stack