CVE-2023-54248
Unknown Unknown - Not Provided

Null Pointer Dereference in Linux Kernel NTFS3 via kmemdup

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

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.

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54248
EUVD
EUVD-2023-60393

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a NULL pointer dereference issue in the Linux kernel's NTFS3 filesystem driver. The function kmemdup, which duplicates memory, may return a NULL pointer if it fails. The vulnerability arises because the code did not check if kmemdup returned NULL before using the pointer, which can lead to a NULL pointer dereference and potentially cause a system crash or instability.

Impact Analysis

If exploited, this vulnerability can cause a NULL pointer dereference in the Linux kernel, potentially leading to a system crash or denial of service. This can affect system stability and availability.

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