Vulnerability in drm/amd/display Package: Division by Zero
Summary
GSD-2022-1002529: drm/amd/display: Check if modulo is 0 before dividing. Affects Kernel versions < 07efce8269a038c37814eb656b4de14aa3015fc6. No fix is published. How to fix ↓
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Background
The drm/amd/display package is a component of the Linux Kernel, which is responsible for managing display functionality on AMD graphics cards. It provides the necessary drivers and interfaces for rendering graphics and handling display output. The package plays a crucial role in enabling proper display functionality on systems using AMD GPUs.
Vulnerability Detail
The vulnerability identified in the drm/amd/display package involves a failure to check if the modulo is zero before performing a division operation. This oversight can lead to a division by zero error, which can cause system instability or crashes. An attacker may potentially exploit this vulnerability to trigger a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been fully proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can apply the patch provided in commit 07efce8269a038c37814eb656b4de14aa3015fc6 manually. The patch modifies the relevant code in the drm/amd/display package to include the necessary check for a zero modulo before performing the division operation. Applying this patch can prevent the division by zero error and mitigate the vulnerability.
Conclusion
The vulnerability in the drm/amd/display package involves a failure to check for a zero modulo before performing a division operation. This can lead to system instability, crashes, or potential exploitation by attackers. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v5.18.4 or later, which includes the necessary fix. Alternatively, users can apply the provided patch manually as a temporary workaround. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can range from system instability and crashes to potential exploitation by attackers to trigger a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.4 or later, which includes the necessary fix for this issue.
Yes, a temporary workaround is to manually apply the patch provided in commit 07efce8269a038c37814eb656b4de14aa3015fc6. This patch adds the required check for a zero modulo before performing the division operation.
For more information about this vulnerability, you can refer to the source link: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002529.json
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