SB20251226242 - Improper locking in Linux kernel
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226242
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-2023-54045)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __audit_inode_child() function in kernel/auditsc.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/0152e7758cc4e9f8bfba8dbea4438d8e488d6c08
- https://git.kernel.org/stable/c/1640c7bd4eddec6c72f3a99cbb74e333a2ce9f5d
- https://git.kernel.org/stable/c/8a40b491372966ba5426e138a53460985565d5a6
- https://git.kernel.org/stable/c/8e76b944a7b9bddef190ffe2e29c9ae342ab91ed
- https://git.kernel.org/stable/c/98ef243d5900d75a64539a2165745bffbb155d43
- https://git.kernel.org/stable/c/9ca08adb75fb40a8f742c371927ee73f9dc753bf
- https://git.kernel.org/stable/c/b59bc6e37237e37eadf50cd5de369e913f524463
- https://git.kernel.org/stable/c/d061e2bfc20f2914656385816e0d20566213c54c
- https://git.kernel.org/stable/c/f6364fa751d7486502c777f124a14d4d543fc5eb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257