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27 March 2024, 02:37:15 UTC
Revision a41d985902c153c31c616fe183cf2ee331e95ecb authored by Stanislav Lisovskiy on 05 May 2023, 08:22:12 UTC, committed by Joonas Lahtinen on 11 May 2023, 11:11:59 UTC 
drm/i915: Fix NULL ptr deref by checking new_crtc_state
 
intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't
obtained previously with intel_atomic_get_crtc_state, so we must check it
for NULLness here, just as in many other places, where we can't guarantee
that intel_atomic_get_crtc_state was called.
We are currently getting NULL ptr deref because of that, so this fix was
confirmed to help.

Fixes: 74a75dc90869 ("drm/i915/display: move plane prepare/cleanup to intel_atomic_plane.c")
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230505082212.27089-1-stanislav.lisovskiy@intel.com
(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
1 parent 275dac1
History
Tip revision: a41d985902c153c31c616fe183cf2ee331e95ecb authored by Stanislav Lisovskiy on 05 May 2023, 08:22:12 UTC
drm/i915: Fix NULL ptr deref by checking new_crtc_state
Tip revision: a41d985
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