diff options
| author | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2026-08-07 16:58:55 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-08-12 10:21:06 -0400 |
| commit | f2a1c4c6fe0a6fcde02e59dde546dba28d283635 (patch) | |
| tree | 09dfe584a7ca2229481f4e636f66f2fe0192d538 /tools/perf/scripts/python | |
| parent | 5e9d136ad74df4edec67e502ce267597064d8f86 (diff) | |
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.
Fixes: 34d66bc7ff10 ("drm/amd/display: Fix Xorg desktop unresponsive on Replay panel")
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)
Cc: stable@vger.kernel.org
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions