SB2025040287 - Improper locking in Linux kernel nfs
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040287
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-2025-21908)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the kcompactd() function in mm/compaction.c, within the nfs_release_folio() function in fs/nfs/file.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/5ae31c54cff745832b9bd5b32e71f3d1b607cd1e
- https://git.kernel.org/stable/c/8253ff29edcb429a9a6c75710941c6a16a9a34b1
- https://git.kernel.org/stable/c/ab0727d6e2196682351c25c1dd112136f6991f11
- https://git.kernel.org/stable/c/ce6d9c1c2b5cc785016faa11b48b6cd317eb367e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83