Buffer overflow in Linux kernel - CVE-2025-71069
Published: January 14, 2026
Vulnerability identifier: #VU121429
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-2025-71069
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the f2fs_rename() function in fs/f2fs/namei.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-71069
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/0dde30753c1e8648665dbe069d814e540ce2fd37
- https://git.kernel.org/stable/c/3d65e27e57aaa9d66709fda4cbfb62a87c04a3f5
- https://git.kernel.org/stable/c/64587ab4d1f16fc94f70e04fa87b2e3f69f8a7bb
- https://git.kernel.org/stable/c/c89845fae250efdd59c1d4ec60e9e1c652cee4b6
- https://git.kernel.org/stable/c/d33f89b34aa313f50f9a512d58dd288999f246b0