SB2025031264 - NULL pointer dereference in Linux kernel core
Published: March 12, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031264
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) NULL pointer dereference (CVE-ID: CVE-2025-21854)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the sock_map_sk_state_allowed() function in net/core/sock_map.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/22b683217ad2112791a708693cb236507abd637a
- https://git.kernel.org/stable/c/8fb5bb169d17cdd12c2dcc2e96830ed487d77a0f
- https://git.kernel.org/stable/c/cc9a7832ede53ade1ba9991f0e27314caa4029d8
- https://git.kernel.org/stable/c/f7b473e35986835cc2813fef7b9d40336a09247e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.5