CVE-2023-53806
Published Dec 9, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: populate subvp cmd info only for the top pipe [Why] System restart observed while changing the display resolution to 8k with extended mode. Sytem restart was caused by a page fault. [How] When the driver populates subvp info it did it for both the pipes using vblank which caused an outof bounds array access causing the page fault. added checks to allow the top pipe only to fix this issue.
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References
Frequently Asked Questions
What is CVE-2023-53806? +
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: populate subvp cmd info only for the top pipe
[Why]
System restart observed while changing the display resolution
to 8k with extended mode. Sytem restart was caused by a page fault.
[How]
When the driver populates subvp info it did it for both the pipes using
vblank which caused an outof bounds array access causing the page fault.
added checks to allow the top pipe only to fix this issue.
How do I check if I'm vulnerable to CVE-2023-53806? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.