watchdog: at91sam9_wdt: prevent timer rearm during teardown (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9_wdt: prevent timer rearm during teardown at91_ping() rearms the watchdog timer from its callback. timer_delete() neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver removal can leave the timer accessing the devm-allocated at91wdt after it has been freed. Use timer_shutdown_sync() on both teardown paths. It waits for a running callback and rejects any attempt by the callback to rearm the timer.
References
- https://git.kernel.org/stable/c/f96c18a766477e5f33d51697963a5c8aed260dae
- https://git.kernel.org/stable/c/a9e0efcb1125e6b452c648671f15920c4955b681
- https://git.kernel.org/stable/c/1beb4dd6a30dea699e98990dd61f892ed1c0985e
- https://git.kernel.org/stable/c/29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed
- https://git.kernel.org/stable/c/b7949b0a7d998013b7ec8617a0ef5b07cca80be4
- https://git.kernel.org/stable/c/8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783
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-2026-64374
- GCVE · GCVE-0-2026-74687
CERT-FR advisories
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < f96c18a766477e5f33d51697963a5c8aed260dae ; affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < a9e0efcb1125e6b452c648671f15920c4955b681 ; affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < 1beb4dd6a30dea699e98990dd61f892ed1c0985e ; affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < 29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed ; affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < b7949b0a7d998013b7ec8617a0ef5b07cca80be4 ; affected 5161b31dc39a6d6dadc95f298de48a725b73ada8 < 8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783 |
| Linux · Linux | affected 3.14 ; unaffected 0 < 3.14 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.45 ≤ 6.18.* |
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 |