{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74687","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.926Z","datePublished":"2026-08-22T15:32:52.792Z","dateUpdated":"2026-08-22T15:32:52.792Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-22T15:32:52.792Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: at91sam9_wdt: prevent timer rearm during teardown\n\nat91_ping() rearms the watchdog timer from its callback. timer_delete()\nneither waits for a running callback nor prevents it from rearming the\ntimer, so probe failure or driver removal can leave the timer accessing the\ndevm-allocated at91wdt after it has been freed.\n\nUse timer_shutdown_sync() on both teardown paths. It waits for a running\ncallback and rejects any attempt by the callback to rearm the timer."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/watchdog/at91sam9_wdt.c"],"versions":[{"version":"5161b31dc39a6d6dadc95f298de48a725b73ada8","lessThan":"29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed","status":"affected","versionType":"git"},{"version":"5161b31dc39a6d6dadc95f298de48a725b73ada8","lessThan":"b7949b0a7d998013b7ec8617a0ef5b07cca80be4","status":"affected","versionType":"git"},{"version":"5161b31dc39a6d6dadc95f298de48a725b73ada8","lessThan":"8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/watchdog/at91sam9_wdt.c"],"versions":[{"version":"3.14","status":"affected"},{"version":"0","lessThan":"3.14","status":"unaffected","versionType":"semver"},{"version":"6.18.45","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.9","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.18.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"7.1.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed"},{"url":"https://git.kernel.org/stable/c/b7949b0a7d998013b7ec8617a0ef5b07cca80be4"},{"url":"https://git.kernel.org/stable/c/8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783"}],"title":"watchdog: at91sam9_wdt: prevent timer rearm during teardown","x_generator":{"engine":"bippy-1.2.0"}}}}