What’s Vulnerable › Vulnerabilities

CVE-2023-54248: fs/ntfs3: Add check for kmemdup

• 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 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Add check for kmemdup Since the kmemdup may return NULL pointer, it should be better to add check for the return value in order to avoid NULL pointer dereference.

Affected products

• Linux kernel: 5.15 — fixed in 6.4

How to fix

Upgrade to a fixed version: Linux kernel 6.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/7898db22ed6cee909513cf4935b5f9f0298b74f0
• https://git.kernel.org/stable/c/952bbfcedbf895963509861e55a6e4fc105eb842
• https://git.kernel.org/stable/c/9f36704a58adade3b0216f8a3fa5503db4517208
• https://git.kernel.org/stable/c/cdcdfd57f4c701f832787da1309cc6687917d783
• https://git.kernel.org/stable/c/e6c3cef24cb0d045f99d5cb039b344874e3cfd74

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