Improper handling of exceptional conditions in Linux kernel - CVE-2026-80911
Published: September 5, 2026
Vulnerability identifier: #VU147014
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80911
CWE-ID: CWE-755
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause incorrect widget reference-count handling.
The vulnerability exists due to improper handling of exceptional conditions in sof_widget_setup_unlocked() when handling failures during widget setup. A local user can trigger a widget setup failure to cause incorrect widget reference-count handling.
Affected software
Linux kernel
How to mitigate CVE-2026-80911
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/8cba53b862e1437257ec206d303ff942684284f1
- https://git.kernel.org/stable/c/b270ed327380428581bbcbd85707f62e942428d7
- https://git.kernel.org/stable/c/c06995637f6a4667f2b540ac65315bfc8196a099
- https://git.kernel.org/stable/c/d48691e70d4a9434b71039d4ed12bb0df4601acf
- https://git.kernel.org/stable/c/e780e4917d43683224812400fe3dc4816fceba75