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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80542

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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)

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 34d66bc7ff10e146a4cec76cf286979740a10954 to < 5045fb4c70bfde36a05e0f41cf35ddfb6d85d3afaffected
  • 34d66bc7ff10e146a4cec76cf286979740a10954 to < 4a6bc92fac30070511d66bcce4ed9b7dac983180affected
  • 34d66bc7ff10e146a4cec76cf286979740a10954 to < f2a1c4c6fe0a6fcde02e59dde546dba28d283635affected

Linux Linux

Default version status: affected

  • 6.18affected
  • 0 to < 6.18unaffected
  • 6.18.46 to ≤ 6.18.*unaffected
  • 7.1.10 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References