SB2025081835 - Improper locking in Linux kernel trace
Published: August 18, 2025
Security Bulletin ID
SB2025081835
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-38539)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __register_event() and __trace_add_event_dirs() functions in kernel/trace/trace_events.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/33e20747b47ddc03569b6bc27a2d6894c1428182
- https://git.kernel.org/stable/c/6bc94f20a4c304997288f9a45278c9d0c06987d3
- https://git.kernel.org/stable/c/70fecd519caad0c1741c3379d5348c9000a5b29d
- https://git.kernel.org/stable/c/7803b28c9aa8d8bd4e19ebcf5f0db9612b0f333b
- https://git.kernel.org/stable/c/b5e8acc14dcb314a9b61ff19dcd9fdd0d88f70df