BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-10-30

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: coresight: Fix incorrect handling for return value of devm_kzalloc The return value of devm_kzalloc could be an null pointer, use "!desc.pdata" to fix incorrect handling return value of devm_kzalloc.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-28

Last Modified

2025-10-30

Generated

2026-07-06

AI Q&A

2025-10-28

EPSS Evaluated

2026-07-04

NVD

CVE-2025-40059

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability in the Linux kernel involves incorrect handling of the return value from the function devm_kzalloc in the coresight component. Specifically, devm_kzalloc could return a null pointer, and the code did not properly check for this condition. The fix involves using "!desc.pdata" to correctly handle the null return value, preventing potential issues caused by dereferencing a null pointer.

Impact Analysis

If the return value of devm_kzalloc is not properly checked and is null, it could lead to null pointer dereferences in the Linux kernel, potentially causing system crashes or instability. This could impact system reliability and availability.

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