{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5161b31dc39a6d6dadc95f298de48a725b73ada8"
            },
            {
              "fixed": "29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed"
            },
            {
              "fixed": "b7949b0a7d998013b7ec8617a0ef5b07cca80be4"
            },
            {
              "fixed": "8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.14.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74687.json"
  },
  "details": "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.",
  "id": "CVE-2026-74687",
  "modified": "2026-08-27T11:31:10.968953490Z",
  "published": "2026-08-22T15:32:52.792Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29fe74c9aa69d78c1c6a3930f1d9fc5db71a6eed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8444d66aa6b6e7fe0a26fa1a00a11cb4d0523783"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7949b0a7d998013b7ec8617a0ef5b07cca80be4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74687.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74687"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "watchdog: at91sam9_wdt: prevent timer rearm during teardown"
}