Buffer overflow in Linux kernel - CVE-2025-40081
Published: October 28, 2025
Vulnerability identifier: #VU117755
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-40081
CWE-ID: CWE-119
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 escalate privileges on the system.
The vulnerability exists due to memory corruption within the function in drivers/perf/arm_spe_pmu.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-40081
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1a19ba8e1f4ff24ece8ca69b79df8442c431db90
- https://git.kernel.org/stable/c/379cae2cb982f571cda9493ac573ab71125fd299
- https://git.kernel.org/stable/c/5d01f2b81568289443d22f1e13a363f829de6343
- https://git.kernel.org/stable/c/7500384d3c9587593d75ded3b006835e7aa73ef8
- https://git.kernel.org/stable/c/a29fea30dd93da16652930162b177941abd8c75e
- https://git.kernel.org/stable/c/e516cfd19b0f4c774a57b17fb43a7f41991f0735