Vulnerability in drm/vc4: txp: Don't set TXP_VSTART_AT_EOF
Summary
GSD-2022-1003642: drm/vc4: txp: Don't set TXP_VSTART_AT_EOF. Affects Kernel versions >= 008095e065a85a13ffb41b9c98149456267c30b8, < ac904216b8b8afbd9958642ae31479c535cb4645. No fix is published. How to fix ↓
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Background
The drm/vc4 package is a component of the Linux Kernel that provides support for the VC4 graphics driver, which is used by Broadcom VideoCore IV GPUs. This driver enables graphics rendering and display functionality on devices utilizing these GPUs. The vulnerability identified in this package affects the transmission path (txp) module within the VC4 driver.
Vulnerability Detail
The vulnerability in the txp module of the drm/vc4 package involves the improper setting of the TXP_VSTART_AT_EOF flag. This flag controls the vertical synchronization of the display. By incorrectly setting this flag, an attacker could potentially manipulate the display synchronization, leading to visual artifacts, screen tearing, or other display-related issues. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The vulnerability in the drm/vc4 package's txp module can potentially lead to display synchronization issues. It is recommended to update the Linux Kernel to the latest version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The drm/vc4 package is a component of the Linux Kernel that provides support for the VC4 graphics driver, used by Broadcom VideoCore IV GPUs.
The txp module is responsible for handling the transmission path for the VC4 graphics driver, including display synchronization.
The impact of this vulnerability could result in visual artifacts, screen tearing, or other display-related issues.
To fix this vulnerability, update the Linux Kernel to version v5.10.121 or later.
The updated Linux Kernel can be obtained from the official Linux Kernel repository or through the package management system of your Linux distribution.
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