Clear MSIX Permission Entry on Shutdown in dmaengine: idxd
Summary
GSD-2021-1000025: dmaengine: idxd: clear MSIX permission entry on shutdown. Affects Kernel versions >= 8e50d392652f20616a136165dff516b86baf5e49, < c84b8982d7aa9b4717dc36a1c6cbc93ee153b500. No fix is published. How to fix ↓
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Background
The dmaengine: idxd package is a component of the Linux Kernel that provides support for Intel Data Streaming Accelerator (IDXD) devices. These devices are used for high-performance data movement in various applications. The package includes drivers and APIs for managing and utilizing IDXD devices.
Vulnerability Detail
The vulnerability in dmaengine: idxd allows an attacker to exploit a permission entry that is not cleared properly during shutdown. This could potentially lead to unauthorized access or privilege escalation. The vulnerability was introduced in version v5.11 of the Linux Kernel and was fixed in version v5.11.16.
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 vulnerability in dmaengine: idxd that allowed unauthorized access or privilege escalation has been fixed in Linux Kernel version v5.11.16. It is recommended to update the Linux Kernel to the latest stable version to ensure the security of your system. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
dmaengine: idxd is a package in the Linux Kernel that provides support for Intel Data Streaming Accelerator (IDXD) devices.
This vulnerability could potentially allow unauthorized access or privilege escalation.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability.
Yes, the vulnerability has been fixed in Linux Kernel version v5.11.16.
You can find more information about this vulnerability in the Open Source Vulnerability Database at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000025.json.
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