Improper handling of exceptional conditions in Linux kernel - CVE-2026-80828
Published: September 5, 2026
Vulnerability identifier: #VU147095
CSH Severity: Low
CVSS v4: 2.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80828
CWE-ID: CWE-755
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to cause a denial of service.
The vulnerability exists due to improper handling of exceptional conditions in the ALSA USB-audio usb_audio_resume() function when processing system-resume failures. An attacker with physical access can trigger a system resume while a USB audio component resume operation fails to cause a denial of service.
The condition applies to system-resume errors; runtime-resume errors follow a distinct error path.
Affected software
Linux kernel
How to mitigate CVE-2026-80828
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/1739a976312e110c93a8dee66a1cdf893a1b187e
- https://git.kernel.org/stable/c/3f06f3f5b16212f180764654a9398ff5f7a855c8
- https://git.kernel.org/stable/c/3fa521c3c54b42e16cad8ade76551113a783752b
- https://git.kernel.org/stable/c/5a625fc2284e35f33693efd9534aebaca3b005d4
- https://git.kernel.org/stable/c/6c94877b6bab9185898bcad4b082ff5592558921
- https://git.kernel.org/stable/c/6d3e202670b819c414076a5d07dffac8a39274ad
- https://git.kernel.org/stable/c/d1f643b1c0258bd519146f7a342bbb394d413912
- https://git.kernel.org/stable/c/f1c05c41d07b874635d681ae328d13ec550470c5