dsc validation mst dp

About this tag
The tag dsc validation mst dp covers a Linux kernel vulnerability (CVE-2026-31488) in AMD's display driver (drm/amd/display). The bug involves DSC validation mishandling the mode_changed flag when unrelated display changes occur in the same atomic commit, particularly when external MST/DP displays are attached. This state-management error can lead to memory leaks and use-after-free conditions. The content focuses on the interplay between DSC validation and MST/DP display connections, highlighting how a small oversight in state tracking can cause serious memory safety issues in the kernel's display subsystem.

  1. CVE-2026-31488: AMD Linux DRM DSC mode_changed Bug Causes Leak to UAF

    CVE-2026-31488 is a narrowly scoped but operationally serious Linux kernel bug in AMD’s display stack, and it shows how a small state-management mistake can ripple into memory leaks and use-after-free conditions. The flaw centers on drm/amd/display and the way DSC validation handled mode_changed...
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    • amd display drm cve-2026-31488 dsc validation mst dp linux kernel security
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