Vulnerability in Kernel package: drm/vc4: txp: Don't set TXP_VSTART_AT_EOF
Summary
GSD-2022-1003435: drm/vc4: txp: Don't set TXP_VSTART_AT_EOF. Affects Kernel versions >= 008095e065a85a13ffb41b9c98149456267c30b8, < 01c9020b2e7c85e394879f34851805179ac3d1d8. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for various hardware devices and software components. The drm/vc4 module within the Kernel package is responsible for handling graphics and display operations for Broadcom VideoCore IV GPUs. One of the components in this module, txp, is affected by a vulnerability that allows the setting of TXP_VSTART_AT_EOF flag in an insecure manner.
Vulnerability Detail
The vulnerability in the drm/vc4 txp component allows an attacker to set the TXP_VSTART_AT_EOF flag in an insecure manner. This flag controls the vertical start position of a frame and can be manipulated to cause a denial-of-service condition or potentially execute arbitrary code. The vulnerability was introduced in version v4.19 of the Linux Kernel and has been fixed in version v5.15.46. Exploiting this vulnerability requires local access to the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix mentioned in the 'how_to_fix' section as soon as possible.
Conclusion
The vulnerability in the drm/vc4 txp component of the Kernel package allows for insecure manipulation of the TXP_VSTART_AT_EOF flag. It is recommended to update the Linux Kernel package to version v5.15.46 or later to mitigate this vulnerability. No known workarounds exist, and the vulnerability can only be exploited with local access to the system. For additional support, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to manipulate the TXP_VSTART_AT_EOF flag, potentially leading to a denial-of-service condition or arbitrary code execution.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the tool will analyze it for any known vulnerabilities.
No, this vulnerability requires local access to the system in order to be exploited.
There are no known instances of this vulnerability being exploited in the wild.
For further support on vulnerability remediation, you can contact info@devnack.com.
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