1 files changed, 34 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4855-drm-amd-display-off-by-one-in-find_irq_source_info.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4855-drm-amd-display-off-by-one-in-find_irq_source_info.patch
new file mode 100644
index 00000000..6ccdfe45
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4855-drm-amd-display-off-by-one-in-find_irq_source_info.patch
@@ -0,0 +1,34 @@
+From a8d9fbbd656f7100ab49705302b7798b61558ecd Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Wed, 4 Jul 2018 12:46:15 +0300
+Subject: [PATCH 4855/5725] drm/amd/display: off by one in
+ find_irq_source_info()
+
+The ->info[] array has DAL_IRQ_SOURCES_NUMBER elements so this condition
+should be >= instead of > or we could read one element beyond the end of
+the array.
+
+Fixes: 4562236b3bc0 ("drm/amd/dc: Add dc display driver (v2)")
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Reviewed-by: Harry Wentland <harry.wentland@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/irq/irq_service.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c
+index dcdfa0f..604bea0 100644
+--- a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c
++++ b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c
+@@ -78,7 +78,7 @@ const struct irq_source_info *find_irq_source_info(
+ 	struct irq_service *irq_service,
+ 	enum dc_irq_source source)
+ {
+-	if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
++	if (source >= DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
+ 		return NULL;
+ 
+ 	return &irq_service->info[source];
+-- 
+2.7.4
+