SB2025070525 - NULL pointer dereference in Linux kernel nfsd
Published: July 5, 2025
Security Bulletin ID
SB2025070525
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-2025-38231)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the nfsd_startup_net() function in fs/nfsd/nfssvc.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/0fccf5f01ed28725cc313a66ca1247eef911d55e
- https://git.kernel.org/stable/c/5060e1a5fef184bd11d298e3f0ee920d96a23236
- https://git.kernel.org/stable/c/83ac1ba8ca102ab5c0ed4351f8ac6e74ac4d5d64
- https://git.kernel.org/stable/c/a97668ec6d73dab237cd1c15efe012a10090a4ed
- https://git.kernel.org/stable/c/b31da62889e6d610114d81dc7a6edbcaa503fcf8
- https://git.kernel.org/stable/c/d622c2ee6c08147ab8c9b9e37d93b6e95d3258e0
- https://git.kernel.org/stable/c/deaeb74ae9318252829c59a84a7d2316fc335660