SB2025072759 - Improper locking in Linux kernel nfs
Published: July 27, 2025
Security Bulletin ID
SB2025072759
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) Improper locking (CVE-ID: CVE-2025-38393)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nfs_layoutget_begin() function in fs/nfs/pnfs.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/08287df60bac5b008b6bcdb03053988335d3d282
- https://git.kernel.org/stable/c/1f4da20080718f258e189a2c5f515385fa393da6
- https://git.kernel.org/stable/c/864a54c1243ed3ca60baa4bc492dede1361f4c83
- https://git.kernel.org/stable/c/8846fd02c98da8b79e6343a20e6071be6f372180
- https://git.kernel.org/stable/c/8ca65fa71024a1767a59ffbc6a6e2278af84735e
- https://git.kernel.org/stable/c/c01776287414ca43412d1319d2877cbad65444ac
- https://git.kernel.org/stable/c/e4b13885e7ef1e64e45268feef1e5f0707c47e72