#VU105665 NULL pointer dereference in Linux kernel - CVE-2025-21854
Published: March 12, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105665
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-2025-21854
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 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.
External links
- 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