SB2025031269 - Improper locking in Linux kernel core
Published: March 12, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031269
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-2025-21862)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the init_net_drop_monitor() and exit_net_drop_monitor() functions in net/core/drop_monitor.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/07b598c0e6f06a0f254c88dafb4ad50f8a8c6eea
- https://git.kernel.org/stable/c/0efa6c42f81c60d8f72ba7f5ed8d4fec8c526282
- https://git.kernel.org/stable/c/219a47d0e6195bd202f22855e35f25bd15bc4d58
- https://git.kernel.org/stable/c/b7859e8643e75619b2705b4fcac93ffd94d72b4a
- https://git.kernel.org/stable/c/fcfc00bfec7bb6661074cb21356d05a4c9470a3c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.130