Improper locking in Linux kernel - CVE-2025-38539
Published: August 18, 2025
Vulnerability identifier: #VU114155
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38539
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2025-38539
Install update from vendor's repository.
Sources
- 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