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CVE-2026-74687 watchdog: at91sam9_wdt: prevent timer rearm during teardown

🗓️ 22 Aug 2026 15:32:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Use-after-free in Linux at91sam9_wdt watchdog driver from timer rearm during teardown.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-74687
22 Aug 202615:32
cve
euvd
EUVD
EUVD-2026-64374
22 Aug 202615:32
euvd
nvd
NVD
CVE-2026-74687
22 Aug 202616:16
nvd
[
  {
    "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"
      }
    ]
  }
]

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