Vulnerability in Kernel: drm/i915/reset
Summary
GSD-2022-1004307: drm/i915/reset: Fix error_state_read ptr + offset use. Affects Kernel versions >= 0e39037b3165567660b0e03f67534da5269a0465, < 606e5d565605e26bf61a0933a6d56940f339c080. 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 communication between hardware and software. It provides essential functions and services for the system's operation. The drm/i915/reset module is responsible for handling reset operations for Intel integrated graphics devices. It ensures the stability and reliability of the graphics subsystem. However, a vulnerability has been discovered in this module that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in drm/i915/reset arises from an error in the handling of pointers and offsets. Specifically, there is a flaw in the error_state_read function that leads to incorrect usage of the ptr + offset expression. This vulnerability could be leveraged by an attacker to execute arbitrary code or trigger a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet.
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 v5.18.6 or later. The fix for this issue was implemented in commit 606e5d565605e26bf61a0933a6d56940f339c080. Updating to the latest version will ensure that the vulnerable code is patched and the system is protected.
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Workaround
As a workaround, users can apply the patch manually by cherry-picking the specific commit mentioned above and recompiling the Kernel. Here is an example of how to apply the patch using the Git command:
$ git cherry-pick 606e5d565605e26bf61a0933a6d56940f339c080
After applying the patch, rebuild and reinstall the Kernel to mitigate the vulnerability.
Conclusion
In conclusion, the vulnerability in the drm/i915/reset module of the Kernel poses a potential security risk. It is crucial to update the Linux Kernel to version v5.18.6 or later to mitigate this vulnerability. Applying the patch manually is also an option. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from arbitrary code execution to a denial-of-service condition. However, the actual impact and attack plausibility have not been proven yet.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert analyzes your manifest file, such as package-lock.json, and provides real-time alerts for open-source vulnerabilities.
Yes, a fix for this vulnerability is available in Linux Kernel version v5.18.6. It is recommended to update to this version or a later one to ensure the vulnerability is patched.
Yes, you can apply the patch manually by cherry-picking the specific commit (606e5d565605e26bf61a0933a6d56940f339c080) and recompiling the Kernel. Refer to the 'how_to_fix' section for detailed instructions.
You can find more information about this vulnerability in the GSD-2022-1004307 entry of the GSD database maintained by the Cloud Security Alliance. The link to the specific entry is provided in the 'affected' section of this report.
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