#VU120781 NULL pointer dereference in Linux kernel - CVE-2023-54195
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120781
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-2023-54195
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 rxrpc_do_sendmsg() function in net/rxrpc/sendmsg.c. 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/72f4a9f3f447948cf86dffe1c4a4c8a429ab9666
- https://git.kernel.org/stable/c/92128a7170a220b5126d09a1c1954a3a8d46cef3
- https://git.kernel.org/stable/c/db099c625b13a74d462521a46d98a8ce5b53af5d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4