Use-after-free read vulnerability in drm_getunique() function in Kernel
Summary
GSD-2021-1000946: drm: Fix use-after-free read in drm_getunique(). Affects Kernel versions < 491d52e0078860b33b6c14f0a7ac74ca1b603bd6. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages the communication between hardware and software. It provides essential services and functions for the proper functioning of the system. The drm_getunique() function is part of the Direct Rendering Manager (DRM) subsystem in the Kernel, which is responsible for managing graphics drivers and hardware acceleration. This vulnerability affects the drm_getunique() function and can lead to a use-after-free read vulnerability.
Vulnerability Detail
The use-after-free read vulnerability in the drm_getunique() function occurs when the function attempts to access memory that has already been freed. This can result in the reading of invalid or unexpected data, potentially leading to information disclosure or system crashes. An attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive information or disrupt the system's stability. The vulnerability has been fixed in Linux Kernel version v5.10.44 by commit 491d52e0078860b33b6c14f0a7ac74ca1b603bd6.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The use-after-free read vulnerability in the drm_getunique() function of the Kernel can potentially lead to unauthorized access to sensitive information or system instability. It is crucial to update the Linux Kernel to version v5.10.44 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to gain unauthorized access to sensitive information or disrupt the stability of the system.
Yes, this vulnerability has been fixed in Linux Kernel version v5.10.44 by commit 491d52e0078860b33b6c14f0a7ac74ca1b603bd6.
To update the Linux Kernel, you can download the latest stable version from the official Git repository and apply the necessary patches.
There are no known exploits for this vulnerability at the moment.
Yes, you can wait for your Linux distribution to provide an updated package containing the fix for this vulnerability.
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