NULL pointer dereference in Linux kernel - CVE-2026-90060
Published: September 19, 2026
Vulnerability identifier: #VU151427
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90060
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the ALSA kcontrol LED state layer when tracking a write-only kcontrol without a get callback. A local user can create a write-only control element without a get callback to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90060
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22
- https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581
- https://git.kernel.org/stable/c/3d20cd049fc5f51f80e24a2db7a3cf00593c79e4
- https://git.kernel.org/stable/c/6e152cbfac3a2a62f79df7d23d621917c20367eb
- https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11