Null Pointer Dereference in pinctrl: renesas: rzn1
Summary
GSD-2022-1003051: pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources(). Affects Kernel versions < 34c719b8fdfbd0c7c54cae56e6b0f16e9f8bf03e. No fix is published. How to fix ↓
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Background
The pinctrl: renesas: rzn1 is a component in the Linux Kernel that provides pin control functionality for Renesas RZ/N1 SoCs. It allows users to configure and control the multiplexing of pins for various hardware peripherals. This vulnerability affects the pinctrl: renesas: rzn1 component in the Linux Kernel.
Vulnerability Detail
The vulnerability in pinctrl: renesas: rzn1 is a null pointer dereference issue that can potentially lead to a system crash or privilege escalation. The vulnerability exists in the sh_pfc_map_resources() function, which is responsible for mapping pin resources. By exploiting this vulnerability, an attacker could trigger a null pointer dereference, causing the system to crash or potentially execute arbitrary code with elevated privileges.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to update the Linux Kernel to the patched version as soon as possible.
Conclusion
In conclusion, the pinctrl: renesas: rzn1 component in the Linux Kernel is vulnerable to a null pointer dereference issue. This vulnerability can potentially lead to system crashes or privilege escalation. To mitigate the risk, it is recommended to update the Linux Kernel to version v5.17.14 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially lead to a system crash or privilege escalation, allowing an attacker to execute arbitrary code with elevated privileges.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert Playground allows you to analyze your manifest file (e.g., package-lock.json) and provides real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is still important to update the Linux Kernel to the patched version to mitigate the risk.
The only known mitigation for this vulnerability is to update the Linux Kernel to the patched version. It is recommended to apply the fix as soon as possible.
You can find more information about this vulnerability in the GSD-2022-1003051 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003051.json
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