SB2025010728 - Improper locking in Linux kernel x86 kernel
Published: January 7, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025010728
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-2024-56761)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the do_user_cp_fault() and do_kernel_cp_fault() functions in arch/x86/kernel/cet.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/b939f108e86b76119428a6fa4e92491e09ac7867
- https://git.kernel.org/stable/c/dc81e556f2a017d681251ace21bf06c126d5a192
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.70