Null Pointer Dereference in pinctrl: renesas: core
Summary
GSD-2022-1002715: pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources(). Affects Kernel versions >= c7977ec4a33633c8e8d9267dd014356cf857351c, < fb4f022b3ad1f3ff3cafdbc7d51896090ae17701. No fix is published. How to fix ↓
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Background
The pinctrl: renesas: core is a component of the Linux Kernel that provides support for pin control on Renesas platforms. It allows configuring and managing the multiplexing of pins for various functionalities. This vulnerability affects versions of the Linux Kernel from v4.3 to v5.18.2.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1002715, is a null pointer dereference issue in the sh_pfc_map_resources() function of the pinctrl: renesas: core. This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition or potentially execute arbitrary code. The issue was introduced in Linux Kernel v4.3 and has been fixed in v5.18.3.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
The null pointer dereference vulnerability in pinctrl: renesas: core can lead to a denial-of-service (DoS) condition or potential execution of arbitrary code. It is crucial to update the Linux Kernel to version v5.18.3 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can lead to a denial-of-service (DoS) condition or potential execution of arbitrary code.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and it will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
The recommended mitigation is to update the Linux Kernel to version v5.18.3 or later, which includes the fix for this vulnerability.
You can find more information about this vulnerability in the GSD-2022-1002715 JSON file available on the Cloud Security Alliance's GitHub repository (https://github.com/cloudsecurityalliance/gsd-database).
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