{"id":"CVE-2026-90060","published":"2026-09-17T17:16:54.723","lastModified":"2026-09-17T17:16:54.723","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: control: Don't add invalid kcontrols to LED layer\n\nThe kcontrol LED state layer tries to track the all associated\nkcontrol elements with naive assumptions that they are readable.\nBut one can create a write-only element that has no get callback (even\na user element can do it), and this may lead to a NULL dereference at\nthe call chain of snd_ctl_led_notify(), as found by syzkaller.\n\nFor avoiding the Oops, add a sanity check of the kcontrol's info and\nget callbacks, and just skip the invalid kcontrols before assigning\nthe kctl to the LED layer.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22","tags":[]},{"url":"https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581","tags":[]},{"url":"https://git.kernel.org/stable/c/3d20cd049fc5f51f80e24a2db7a3cf00593c79e4","tags":[]},{"url":"https://git.kernel.org/stable/c/6e152cbfac3a2a62f79df7d23d621917c20367eb","tags":[]},{"url":"https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}