SB20251226156 - Use-after-free in Linux kernel opp driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226156
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-54026)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the _allocate_opp_table() function in drivers/opp/core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc
- https://git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54
- https://git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d
- https://git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5