SB20260114160 - NULL pointer dereference in Linux kernel sunrpc auth_gss
Published: January 14, 2026
Security Bulletin ID
SB20260114160
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-71120)
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 website.
References
- 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