SB20250226493 - Improper locking in Linux kernel rcu
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226493
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-2022-49540)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the kernel/rcu/tasks.h. 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/1c6c3f2336642fb3074593911f5176565f47ec41
- https://git.kernel.org/stable/c/230bf5878af6038dfb63d9184272a58475236580
- https://git.kernel.org/stable/c/8f49a8758b5cd541bd7aa9a0d0d11c7426141c0e
- https://git.kernel.org/stable/c/ba722d061bc4b54802d701fc63fc2fd988934603
- https://git.kernel.org/stable/c/f75fd4b9221d93177c50dcfde671b2e907f53e86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19