#VU121503 NULL pointer dereference in Linux kernel - CVE-2025-71120
Published: January 14, 2026
Vulnerability identifier: #VU121503
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-2025-71120
CWE-ID: CWE-476
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 NULL pointer dereference within the gss_read_proxy_verf() function in net/sunrpc/auth_gss/svcauth_gss.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/1c8bb965e9b0559ff0f5690615a527c30f651dd8
- https://git.kernel.org/stable/c/7452d53f293379e2c38cfa8ad0694aa46fc4788b
- https://git.kernel.org/stable/c/a2c6f25ab98b423f99ccd94874d655b8bcb01a19
- https://git.kernel.org/stable/c/d4b69a6186b215d2dc1ebcab965ed88e8d41768d
- https://git.kernel.org/stable/c/f9e53f69ac3bc4ef568b08d3542edac02e83fefd