Vulnerability in drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem
Summary
GSD-2022-1003494: drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem. Affects Kernel versions < 436cff507f2a41230baacc3e2ef1d3b2d2653f40. No fix is published. How to fix ↓
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Background
The drm/etnaviv package is a component of the Linux Kernel that provides support for the Etnaviv GPU found in certain devices. It enables graphics rendering and acceleration on these devices. The etnaviv_iommu_unmap_gem function is responsible for unmapping memory regions associated with a graphics element. However, a vulnerability has been discovered in this function that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in drm/etnaviv arises from a failure to check for a reaped mapping in the etnaviv_iommu_unmap_gem function. This oversight could allow an attacker to manipulate memory mappings and potentially execute arbitrary code or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.10.121 by commit 436cff507f2a41230baacc3e2ef1d3b2d2653f40.
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
In conclusion, the vulnerability in drm/etnaviv's etnaviv_iommu_unmap_gem function could potentially allow attackers to manipulate memory mappings and execute arbitrary code or cause a denial-of-service condition. It is crucial to update the Linux Kernel to version v5.10.121 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could potentially allow an attacker to manipulate memory mappings and execute arbitrary code or cause a denial-of-service condition.
Yes, this vulnerability has been fixed in Linux Kernel version v5.10.121 by commit 436cff507f2a41230baacc3e2ef1d3b2d2653f40.
Instructions for updating the Linux Kernel can be found in the official documentation for your Linux distribution.
There is no known exploit for this vulnerability at this time.
The recommended mitigation is to update the Linux Kernel to version v5.10.121 or later.
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