SB2025120479 - Improper locking in Linux kernel hfsplus
Published: December 4, 2025
Security Bulletin ID
SB2025120479
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-2025-40244)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the hfs_find_init() and hfs_brec_find() functions in fs/hfsplus/bfind.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/14c673a2f3ecf650b694a52a88688f1d71849899
- https://git.kernel.org/stable/c/4840ceadef4290c56cc422f0fc697655f3cbf070
- https://git.kernel.org/stable/c/99202d94909d323a30d154ab0261c0a07166daec
- https://git.kernel.org/stable/c/a5bfb13b4f406aef1a450f99d22d3e48df01528c
- https://git.kernel.org/stable/c/b8a72692aa42b7dcd179a96b90bc2763ac74576a
- https://git.kernel.org/stable/c/c135b8dca65526aa5b8814e9954e0ae317d9c598
- https://git.kernel.org/stable/c/c1ec90bed504640a42bb20a5f413be39cd17ad71
- https://git.kernel.org/stable/c/d7e313039a8f3a6ee072dc5ff4643234d2d735cf