CVE-2023-53258:
Linux Kernel vulnerability analysis and mitigation

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix possible underflow for displays with large vblank

[Why] Underflow observed when using a display with a large vblank region and low refresh rate

[How] Simplify calculation of vblank_nom

Increase value for VBlankNomDefaultUS to 800us

Source: NVD

CVE ID	Severity	Score	Technologies	Component name	CISA KEV exploit	Has fix	Published date
CVE-2023-53260	N/A	N/A	Linux Kernel	kernel-rt-64k-debug-modules	No	Yes	Sep 15, 2025
CVE-2023-53259	N/A	N/A	Linux Kernel	kernel-64k-modules-internal	No	Yes	Sep 15, 2025
CVE-2023-53258	N/A	N/A	Linux Kernel	rtla	No	Yes	Sep 15, 2025
CVE-2023-53257	N/A	N/A	Linux Kernel	kernel-rt-64k	No	Yes	Sep 15, 2025
CVE-2023-53256	N/A	N/A	Linux Kernel	kernel-64k-debug-core	No	Yes	Sep 15, 2025

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