SB20251112113 - NULL pointer dereference in Linux kernel sunrpc auth_gss
Published: November 12, 2025
Security Bulletin ID
SB20251112113
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-2025-40129)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the svcauth_gss_verify_header() 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.