#VU106802 Improper locking in Linux kernel - CVE-2025-21908
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106802
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21908
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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