1 files changed, 39 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0026-drm-amd-display-Fix-memory-corruption-issue.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0026-drm-amd-display-Fix-memory-corruption-issue.patch
new file mode 100644
index 00000000..7f3ec016
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0026-drm-amd-display-Fix-memory-corruption-issue.patch
@@ -0,0 +1,39 @@
+From 48ae1c909b4c6e8a7d36f53d6f0900799dd108b0 Mon Sep 17 00:00:00 2001
+From: jimqu <Jim.Qu@amd.com>
+Date: Mon, 28 Nov 2016 08:05:46 +0800
+Subject: [PATCH 0026/4131] 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: JimQu <Jim.Qu@amd.com>
+Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
+index f7638f8..424a7d4 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
+@@ -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);
+ 
+-- 
+2.7.4
+