SB2026090530 - Improper handling of exceptional conditions in Linux kernel soc sof
Published: September 5, 2026
Security Bulletin ID
SB2026090530
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper handling of exceptional conditions (CVE-ID: CVE-2026-80911)
CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.
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