SB2026091916 - Incomplete cleanup in Linux kernel acpi driver
Published: September 19, 2026
Security Bulletin ID
SB2026091916
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) Incomplete cleanup (CVE-ID: CVE-2026-90194)
CWE-ID: CWE-459 - Incomplete cleanup
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 consume ACPI device instance IDs.
The vulnerability exists due to incomplete cleanup in the ACPI device registration rollback path when handling a failed device_add() operation. A local user can trigger a device_add() failure to consume ACPI device instance IDs.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0b9053cd0955c7cd66d71a8442be33926d70e197
- https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03
- https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7
- https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654
- https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897
- https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228