SB20240608235 - Improper locking in Linux kernel nfsd
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608235
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-2024-26629)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the check_for_locks() and nfsd4_release_lockowner() functions in fs/nfsd/nfs4state.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/e4cf8941664cae2f89f0189c29fe2ce8c6be0d03
- https://git.kernel.org/stable/c/b7d2eee1f53899b53f069bba3a59a419fc3d331b
- https://git.kernel.org/stable/c/8f5b860de87039b007e84a28a5eefc888154e098
- https://git.kernel.org/stable/c/edcf9725150e42beeca42d085149f4c88fa97afd
- https://git.kernel.org/stable/c/c6f8b3fcc62725e4129f2c0fd550d022d4a7685a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.154