Null Pointer Dereference in pinctrl: renesas: rzn1

Kernel Updated 02 Oct 2025

Summary

28/06/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1002721: pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources(). Affects Kernel versions < 01f9e02e0f13df3fd291676dc80054e977be1601. No fix is published. How to fix ↓

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Background

The pinctrl: renesas: rzn1 package is a component of the Linux Kernel that provides pin control functionality for Renesas RZ/N1 SoCs. It allows for the configuration and management of pin multiplexing, input/output settings, and other related features. This vulnerability affects the package and can lead to a null pointer dereference in the sh_pfc_map_resources() function.

Vulnerability Detail

The vulnerability arises due to a possible null pointer dereference in the sh_pfc_map_resources() function of the pinctrl: renesas: rzn1 package. This can occur when certain resources are being mapped, potentially leading to a crash or other unexpected behavior. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.18.3 by commit 01f9e02e0f13df3fd291676dc80054e977be1601.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.3 or later. This can be done by pulling the latest changes from the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) or by applying the specific commit 01f9e02e0f13df3fd291676dc80054e977be1601.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The pinctrl: renesas: rzn1 package in the Linux Kernel is vulnerable to a null pointer dereference issue in the sh_pfc_map_resources() function. It is recommended to update the kernel to version v5.18.3 or later to fix this vulnerability. If you need further assistance or support in addressing this vulnerability, please contact DevNack.com.

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