Commit ead964f2 authored by jimqu's avatar jimqu Committed by Alex Deucher
Browse files

drm/amd/display: Fix memory corruption issue. 



temp_flip_context is always same as current_context,
and the current_context will be freed in
dc_commit_targets(), but  temp_flip_context will be used in
dc_update_surfaces_for_target().

Signed-off-by: default avatarJimQu <Jim.Qu@amd.com>
Reviewed-by: default avatarAndrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8e545104

drivers/gpu/drm/amd/display/dc/core/dc.c

+5 −1
Original line number Diff line number Diff line
@@ -1096,8 +1096,12 @@ bool dc_commit_targets( 


	resource_validate_ctx_destruct(core_dc->current_context);



	dm_free(core_dc->current_context);

	if (core_dc->temp_flip_context != core_dc->current_context) {

		dm_free(core_dc->temp_flip_context);

		core_dc->temp_flip_context = core_dc->current_context;

	}

	core_dc->current_context = context;

	memset(core_dc->temp_flip_context, 0, sizeof(*core_dc->temp_flip_context));



	return (result == DC_OK);