xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
European references
- ENISA EUVD · EUVD-2026-66448
- GCVE · GCVE-0-2026-80533
CERT-FR advisories
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected ab97f4b1c030750f2475bf4da8a9554d02206640 < 43b4ecbc948a2e441804c9d7b772deb6b2e44e3d ; affected ab97f4b1c030750f2475bf4da8a9554d02206640 < c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03 ; affected ab97f4b1c030750f2475bf4da8a9554d02206640 < a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081 ; affected ab97f4b1c030750f2475bf4da8a9554d02206640 < 1e96a00e0d3a00be6e4f368b2f18e2d345f813ce |
| Linux · Linux | affected 6.10 ; unaffected 0 < 6.10 ; unaffected 6.12.105 ≤ 6.12.* ; unaffected 6.18.46 ≤ 6.18.* ; unaffected 7.1.10 ≤ 7.1.* ; unaffected 7.2 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |