Vulnerability in drm/rockchip package: Possible Null Pointer Dereference in vop_bind()
Summary
GSD-2022-1004014: drm/rockchip: vop: fix possible null-ptr-deref in vop_bind(). Affects Kernel versions >= 2048e3286f347db5667708e47448176b5329e8d8, < fcd6a886443730c39170b8383411e52118aec0a3. No fix is published. How to fix ↓
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Background
The drm/rockchip package is a component of the Linux Kernel ecosystem. It provides support for graphics and display functionality on Rockchip-based devices. The vop_bind() function within this package is responsible for binding the video output processor (VOP) to the display controller. This vulnerability in vop_bind() could lead to a null pointer dereference, potentially causing a system crash or other unexpected behavior.
Vulnerability Detail
The vulnerability originates from a null pointer dereference in the vop_bind() function of the drm/rockchip package. When certain conditions are met, a null pointer may be dereferenced, leading to a crash or other unpredictable consequences. The impact and attack plausibility of this vulnerability have not been proven yet. It was introduced in version v3.19 of the Linux Kernel and has been fixed in version v4.14.283 by commit fcd6a886443730c39170b8383411e52118aec0a3.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.283 or later. This can be done by pulling the latest changes from the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The vulnerability in the drm/rockchip package's vop_bind() function could result in a null pointer dereference, leading to system crashes or other unexpected behavior. It is crucial to update the Linux Kernel to version v4.14.283 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability could range from a system crash to other unexpected behavior, depending on the conditions triggering the null pointer dereference.
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 Vulert Playground will provide real-time alerts for open-source vulnerabilities.
As of now, there is no known exploit for this vulnerability. However, it is still important to apply the fix to prevent any potential future exploits.
The remote exploitability of this vulnerability has not been determined yet. Further analysis is required to assess the potential for remote exploitation.
The recommended solution is to update the Linux Kernel to the fixed version. However, if updating is not feasible, it is advisable to consult with security experts or the package maintainers for alternative mitigation strategies.
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