#VU120783 NULL pointer dereference in Linux kernel - CVE-2023-54189
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120783
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-2023-54189
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 persistent_ram_new() function in fs/pstore/ram_core.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/065c81ae5817b245bb9feb6d54e027702740b49a
- https://git.kernel.org/stable/c/2a764a2facd9dd88a69777200f65dfd0182765dc
- https://git.kernel.org/stable/c/38a9d7dac3ad25323145b4aaea3b5f434f50011d
- https://git.kernel.org/stable/c/8430a8e8e85420d4cb51dcb08b0278ab194ea82f
- https://git.kernel.org/stable/c/a14cb307267ba7a1715403e071bdc4deda77eef5
- https://git.kernel.org/stable/c/d97038d5ec2062733c1e016caf9baaf68cf64ea1
- https://git.kernel.org/stable/c/f57ba91a46d3fc52bfdac9cca5cf5572ec7afd6d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39