#VU121509 Input validation error in Linux kernel - CVE-2025-71121
Published: January 14, 2026
Vulnerability identifier: #VU121509
Vulnerability risk: Low
CVSSv4.0: 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-2025-71121
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the gsc_set_affinity_irq() function in drivers/parisc/gsc.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/4d0858bbeea12a50bfb32137f74d4b74917ebadd
- https://git.kernel.org/stable/c/60560d13ff368415c96a0c1247bea16d427c0641
- https://git.kernel.org/stable/c/c8f810e20f4bbe50b49f73429d9fa6efad00623e
- https://git.kernel.org/stable/c/dca7da244349eef4d78527cafc0bf80816b261f5
- https://git.kernel.org/stable/c/e09fd2eb6d4c993ee9eaae556cb51e30ec1042df