gfs2: Fix slab-use-after-free in qd_put (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.19 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in qd_put Commit a475c5dd16e5 ("gfs2: Free quota data objects synchronously") started freeing quota data objects during filesystem shutdown instead of putting them back onto the LRU list, but it failed to remove these objects from the LRU list, causing LRU list corruption. This caused use-after-free when the shrinker (gfs2_qd_shrink_scan) tried to access already-freed objects on the LRU list. Fix this by removing qd objects from the LRU list before freeing them in qd_put(). Initial fix from Deepanshu Kartikey <kartikey406@gmail.com>.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/53aaf083de197946b25bc4ffa3068d37366ce73d
- https://git.kernel.org/stable/c/ca7c67bdd293089b3483f18886d6b2d0037d2ad9
- https://git.kernel.org/stable/c/1d47922b98046b8070a77347fb883a6523792803
- https://git.kernel.org/stable/c/80fff26d7a0c3926b511661c27eecc811a420eef
- https://git.kernel.org/stable/c/22150a7d401d9e9169b9b68e05bed95f7f49bf69
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-32327
- GCVE · GCVE-0-2026-45861
CERT-FR advisories
- CERTFR-2026-AVI-1287 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0956 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0927 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0861 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0831 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6 < 6.12.75cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected a475c5dd16e57c570113eccba51955b5df8bb052 < 53aaf083de197946b25bc4ffa3068d37366ce73d ; affected a475c5dd16e57c570113eccba51955b5df8bb052 < ca7c67bdd293089b3483f18886d6b2d0037d2ad9 ; affected a475c5dd16e57c570113eccba51955b5df8bb052 < 1d47922b98046b8070a77347fb883a6523792803 ; affected a475c5dd16e57c570113eccba51955b5df8bb052 < 80fff26d7a0c3926b511661c27eecc811a420eef ; affected a475c5dd16e57c570113eccba51955b5df8bb052 < 22150a7d401d9e9169b9b68e05bed95f7f49bf69 |
| Linux · Linux | affected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.75 ≤ 6.12.* ; unaffected 6.18.14 ≤ 6.18.* ; unaffected 6.19.4 ≤ 6.19.* |
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 |