{"id":"CVE-2026-97582","summary":"hwmon: (gpio-fan) Fix use-after-free in alarm work","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (gpio-fan) Fix use-after-free in alarm work\n\nfan_alarm_irq_handler() queues fan_data-\u003ealarm_work, but nothing\ncancels it.  fan_alarm_notify() dereferences fan_data and its hwmon\ndevice.  On unbind, devres frees the interrupt, which only waits for\nthe handler itself, and then releases the hwmon device and fan_data,\nso a pending fan_alarm_notify() can run after those frees.\n\nReplace INIT_WORK() with devm_work_autocancel(), registered before\ndevm_request_irq().  The devres cleanup then frees the interrupt\nfirst, so no new work can be queued, and cancels the work while\nfan_data and the hwmon device are still alive.\n\nThis issue was found by an in-house static analysis tool.","modified":"2026-10-09T17:27:04.256200405Z","published":"2026-09-25T10:22:03.041Z","related":["openSUSE-SU-2026:12074-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97582.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/30755d3a5782cd704c8921cac8ee66dffe4383ea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/594c62eea7c82f526054496e9fa9b895122a8016"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e67d9bdac810edacef78cbaeedd34445aa8ceb7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b12bd724db9db318e3a68be17693583dc29a066"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6ab7f855891877a16d2e2ddf0cd0305fd098a85"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e9fc7d53b2eb34c0a607d1659f49b46911aaf16c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97582.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97582"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d6fe1360f42e86262153927986dea6502daff703"},{"fixed":"594c62eea7c82f526054496e9fa9b895122a8016"},{"fixed":"6e67d9bdac810edacef78cbaeedd34445aa8ceb7"},{"fixed":"e9fc7d53b2eb34c0a607d1659f49b46911aaf16c"},{"fixed":"9b12bd724db9db318e3a68be17693583dc29a066"},{"fixed":"30755d3a5782cd704c8921cac8ee66dffe4383ea"},{"fixed":"c6ab7f855891877a16d2e2ddf0cd0305fd098a85"},{"fixed":"a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97582.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.37"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97582.json"}}],"schema_version":"1.9.0"}