What’s Vulnerable › Vulnerabilities

CVE-2023-54189: pstore/ram: Add check for kstrdup

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-30 · updated 2026-10-28

Description

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: Add check for kstrdup Add check for the return value of kstrdup() and return the error if it fails in order to avoid NULL pointer dereference.

Affected products

• Linux kernel: from 5.4.12 before 5.4.251; 5.5 — fixed in 5.4.251, 6.5

How to fix

Upgrade to a fixed version: Linux kernel 5.4.251, 6.5. Check the vendor advisory for mitigations.

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

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