SB20250916238 - Improper locking in Linux kernel rcu
Published: September 16, 2025
Security Bulletin ID
SB20250916238
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-2025-39744)
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/tree_plugin.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/1cfa244f7198d325594e627574930b7b91df5bfe
- https://git.kernel.org/stable/c/56c5ef194f4509df63fc0f7a91ea5973ce479b1e
- https://git.kernel.org/stable/c/b41642c87716bbd09797b1e4ea7d904f06c39b7b
- https://git.kernel.org/stable/c/ddebb2a7677673cf4438a04e1a48b8ed6b0c8e9a
- https://git.kernel.org/stable/c/e7a375453cca2b8a0d2fa1b82b913f3fed7c0507