CVE-2026-74687
- Source
- https://cve.org/CVERecord?id=CVE-2026-74687
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74687.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74687
- Downstream
- Published
- 2026-08-22T15:32:52.792Z
- Modified
- 2026-08-27T11:31:10.968953490Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- watchdog: at91sam9_wdt: prevent timer rearm during teardown
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
watchdog: at91sam9_wdt: prevent timer rearm during teardown
at91ping() rearms the watchdog timer from its callback. timerdelete() 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 timershutdownsync() on both teardown paths. It waits for a running callback and rejects any attempt by the callback to rearm the timer.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74687.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed
- https://git.kernel.org/stable/c/8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783
- https://git.kernel.org/stable/c/b7949b0a7d998013b7ec8617a0ef5b07cca80be4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74687.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74687
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git