BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-03-17

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Check return value after calling platform_get_resource() platform_get_resource() may return NULL pointer, we need check its return value to avoid null-ptr-deref in resource_size().

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-07

Last Modified

2026-03-17

Generated

2026-07-06

AI Q&A

2025-10-07

EPSS Evaluated

2026-07-05

NVD

CVE-2022-50524

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability occurs in the Linux kernel's Mediatek IOMMU driver where the function platform_get_resource() may return a NULL pointer. The code did not check the return value before using it, which could lead to a null pointer dereference in the resource_size() function. The vulnerability has been resolved by adding a check for the return value of platform_get_resource() to prevent this null pointer dereference.

Impact Analysis

If exploited, this vulnerability could cause the Linux kernel to dereference a NULL pointer, potentially leading to a kernel crash or system instability. This could result in denial of service or unexpected behavior on affected systems.

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