SB20251112114 - NULL pointer dereference in Linux kernel bpf
Published: November 12, 2025
Security Bulletin ID
SB20251112114
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-2025-40123)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the __bpf_prog_map_compatible() function in kernel/bpf/core.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/08cb3dc9d2b44f153d0bcf2cb966e4a94b5d0f32
- https://git.kernel.org/stable/c/4540aed51b12bc13364149bf95f6ecef013197c0
- https://git.kernel.org/stable/c/a99de19128aec0913f3d529f529fbbff5edfaff8
- https://git.kernel.org/stable/c/c1ad19b5d8e23123503dcaf2d4342e1b90b923ad
- https://git.kernel.org/stable/c/f856c598080ba7ce1252867b8ecd6ad5bdaf9a6a