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CVE-2026-31488 affects the Linux kernel AMDGPU display driver. During Display Stream Compression (DSC) pre-validation, pre_validate_dsc() incorrectly clears the CRTC mode_changed flag when DSC recomputation produces no timing change, even if an unrelated mode change is pending in the same atomic Kernel Mode Setting (KMS) commit. Because dm_update_crtc_state() has already created replacement streams, clearing the flag prevents amdgpu_dm_commit_streams() from releasing the old stream and prevents amdgpu_dm_atomic_commit_tail() from acquiring a reference to the new stream. This causes a memory leak and a subsequent use-after-free in dc_stream_release() when the stream is disabled. The fix preserves and restores the earlier mode_changed value instead of unconditionally clearing it.
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18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the referenced CentOS Stream 8 TuxCare security update; no technical details are provided.
A Linux kernel vulnerability in the AMD display DRM component related to DSC validation and mode changes.
A Linux kernel drm/amd/display vulnerability addressed in this Red Hat kernel security advisory.
A Linux kernel vulnerability in drm/amd/display related to DSC validation and unrelated mode changes, addressed in this Red Hat kernel security update.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.