SB20251230228 - NULL pointer dereference in Linux kernel pstore
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230228
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-2023-54189)
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 website.
References
- 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