CVE-2026-23218
Received Received - Intake

Null Pointer Dereference in Linux Loongson GPIO Driver

Publication date: 2026-02-18

Last updated on: 2026-03-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc() Fix incorrect NULL check in loongson_gpio_init_irqchip(). The function checks chip->parent instead of chip->irq.parents.

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Meta Information

Published
2026-02-18
Last Modified
2026-03-18
Generated
2026-07-06
AI Q&A
2026-02-18
EPSS Evaluated
2026-07-04
NVD
CVE-2026-23218
EUVD
EUVD-2026-8079

Affected Vendors & Products

Showing 9 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 6.18 (inc) to 6.18.10 (exc)

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Exploitability

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

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Executive Summary

This vulnerability is related to the Linux kernel's gpio driver for loongson 64-bit systems. It involves an incorrect NULL pointer check in the function loongson_gpio_init_irqchip(). Specifically, the code mistakenly checks chip->parent instead of chip->irq.parents, which could lead to improper handling of the irqchip initialization.

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