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Amd CVE-2026-80542

| EUVDEUVD-2026-66457
2026-08-26 Linux

Lifecycle Timeline

2
Patch available
Aug 26, 2026 - 16:17 EUVD
CVE Published
Aug 26, 2026 - 14:37 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

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

drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()

amdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when vblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before a stream is attached to it.

BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu] Call Trace: drm_vblank_enable drm_vblank_get drm_crtc_get_sequence_ioctl drm_ioctl_kernel drm_ioctl

Reproduced by running VKCTS with WSI tests enabled on RADV.

Guard the enable path on acrtc_state->stream being non-NULL, matching the existing checks in this function.

(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)

Analysis

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank() amdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when vblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before a stream is attached to it. BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu] Call Trace: drm_vblank_enable drm_vblank_get drm_crtc_get_sequence_ioctl drm_ioctl_kernel drm_ioctl Reproduced by running VKCTS with WSI tests enabled on RADV. …

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CVE-2026-80542 vulnerability details – vuln.today

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