Integer overflow in Linux kernel - CVE-2025-71109
Published: January 14, 2026
Vulnerability identifier: #VU121516
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-2025-71109
CWE-ID: CWE-190
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 execute arbitrary code.
The vulnerability exists due to integer overflow within the ftrace_dyn_arch_init_insns() and ftrace_make_call() functions in arch/mips/kernel/ftrace.c. A local user can execute arbitrary code.
How to mitigate CVE-2025-71109
Install update from vendor's repository.