#VU119174 NULL pointer dereference in Linux kernel - CVE-2025-40254
Published: December 4, 2025
Vulnerability identifier: #VU119174
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-40254
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the net/openvswitch/flow_netlink.h. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0b903f33c31c82b1c3591279fd8a23893802b987
- https://git.kernel.org/stable/c/3415faa1fcb4150f29a72c5ecf959339d797feb7
- https://git.kernel.org/stable/c/4689ba45296dbb3a47e70a1bc2ed0328263e48f3
- https://git.kernel.org/stable/c/9c61d8fe1350b7322f4953318165d6719c3b1475
- https://git.kernel.org/stable/c/dfe28c4167a9259fc0c372d9f9473e1ac95cff67