Refcount Leak in versatile_reboot_probe in Kernel
Summary
GSD-2022-1004787: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe. Affects Kernel versions >= 0e545f57b708630c54c8c5c24ea7f7034f6c40d9, < 6689754b121bd487f99680280102b3a5cd7374af. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential services and functionalities to enable the proper functioning of the system. The versatile_reboot_probe function in the Kernel is responsible for handling power and reset operations on ARM Versatile platforms. However, a refcount leak vulnerability has been identified in this function.
Vulnerability Detail
The refcount leak vulnerability in versatile_reboot_probe allows an attacker to cause a reference count leak, leading to a resource exhaustion condition. By repeatedly triggering power or reset operations, an attacker can exhaust system resources, potentially resulting in a denial of service (DoS) scenario. This vulnerability was introduced in version v3.18 of the Linux Kernel and has been fixed in version v4.19.254.
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 essential to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
The refcount leak vulnerability in versatile_reboot_probe in the Kernel can be exploited to exhaust system resources, potentially leading to a denial of service (DoS) scenario. It is crucial to update the Linux Kernel to version v4.19.254 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can be exploited to exhaust system resources, potentially leading to a denial of service (DoS) scenario.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known public exploit for this vulnerability. However, it is crucial to apply the fix to ensure your system is protected.
No, updating the Linux Kernel to the recommended version is the only known solution to mitigate this vulnerability.
You can find more information about this vulnerability in the GSD-2022-1004787 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004787.json.
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