diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0.c
index d459ae9cf8a6..da77b2c03e24 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/process_pptables_v1_0.c
@@ -1152,15 +1152,17 @@ static int init_thermal_controller(
  * @powerplay_table: Pointer to the PowerPlay Table.
  * Exception:  2 if the powerplay table is incorrect.
  */
-static int check_powerplay_tables(
-		struct pp_hwmgr *hwmgr,
-		const ATOM_Tonga_POWERPLAYTABLE *powerplay_table
-		)
+static int get_tonga_state_array(struct pp_hwmgr *hwmgr,
+	const ATOM_Tonga_POWERPLAYTABLE *powerplay_table,
+	const ATOM_Tonga_State_Array **state_array)
 {
 	const ATOM_Tonga_State_Array *state_arrays;
+	u16 state_array_offset;
+	size_t state_array_size;
+	size_t table_size = hwmgr->soft_pp_table_size;
 
-	state_arrays = (ATOM_Tonga_State_Array *)(((unsigned long)powerplay_table) +
-		le16_to_cpu(powerplay_table->usStateArrayOffset));
+	PP_ASSERT_WITH_CODE((table_size >= sizeof(*powerplay_table)),
+			    "Invalid PowerPlay Table!", return -1);
 
 	PP_ASSERT_WITH_CODE((ATOM_Tonga_TABLE_REVISION_TONGA <=
 		powerplay_table->sHeader.ucTableFormatRevision),
@@ -1169,12 +1171,34 @@ static int check_powerplay_tables(
 		"State table is not set!", return -1);
 	PP_ASSERT_WITH_CODE((0 < powerplay_table->sHeader.usStructureSize),
 		"Invalid PowerPlay Table!", return -1);
+
+	state_array_offset = le16_to_cpu(powerplay_table->usStateArrayOffset);
+	PP_ASSERT_WITH_CODE((state_array_offset <=
+			     table_size - sizeof(*state_arrays)),
+			    "Invalid PowerPlay Table!", return -1);
+
+	state_arrays = (ATOM_Tonga_State_Array *)(((unsigned long)powerplay_table) +
+		state_array_offset);
 	PP_ASSERT_WITH_CODE((0 < state_arrays->ucNumEntries),
 		"Invalid PowerPlay Table!", return -1);
 
+	state_array_size = struct_size(state_arrays, entries, state_arrays->ucNumEntries);
+	PP_ASSERT_WITH_CODE((state_array_size <= table_size - state_array_offset),
+			    "Invalid PowerPlay Table!", return -1);
+
+	*state_array = state_arrays;
+
 	return 0;
 }
 
+static int check_powerplay_tables(struct pp_hwmgr *hwmgr,
+	const ATOM_Tonga_POWERPLAYTABLE *powerplay_table)
+{
+	const ATOM_Tonga_State_Array *state_arrays;
+
+	return get_tonga_state_array(hwmgr, powerplay_table, &state_arrays);
+}
+
 static int pp_tables_v1_0_initialize(struct pp_hwmgr *hwmgr)
 {
 	int result = 0;
@@ -1278,17 +1302,16 @@ const struct pp_table_func pptable_v1_0_funcs = {
 
 int get_number_of_powerplay_table_entries_v1_0(struct pp_hwmgr *hwmgr)
 {
-	ATOM_Tonga_State_Array const *state_arrays;
+	const ATOM_Tonga_State_Array *state_arrays;
 	const ATOM_Tonga_POWERPLAYTABLE *pp_table = get_powerplay_table(hwmgr);
+	int result;
 
 	PP_ASSERT_WITH_CODE((NULL != pp_table),
 			"Missing PowerPlay Table!", return -1);
-	PP_ASSERT_WITH_CODE((pp_table->sHeader.ucTableFormatRevision >=
-			ATOM_Tonga_TABLE_REVISION_TONGA),
-			"Incorrect PowerPlay table revision!", return -1);
 
-	state_arrays = (ATOM_Tonga_State_Array *)(((unsigned long)pp_table) +
-			le16_to_cpu(pp_table->usStateArrayOffset));
+	result = get_tonga_state_array(hwmgr, pp_table, &state_arrays);
+	PP_ASSERT_WITH_CODE((result == 0),
+			    "Invalid PowerPlay Table State Array.", return result);
 
 	return (uint32_t)(state_arrays->ucNumEntries);
 }
@@ -1419,15 +1442,11 @@ int get_powerplay_table_entry_v1_0(struct pp_hwmgr *hwmgr,
 
 	if (pp_table->sHeader.ucTableFormatRevision >=
 			ATOM_Tonga_TABLE_REVISION_TONGA) {
-		state_arrays = (ATOM_Tonga_State_Array *)(((unsigned long)pp_table) +
-				le16_to_cpu(pp_table->usStateArrayOffset));
-
-		PP_ASSERT_WITH_CODE((0 < pp_table->usStateArrayOffset),
-				"Invalid PowerPlay Table State Array Offset.", return -1);
-		PP_ASSERT_WITH_CODE((0 < state_arrays->ucNumEntries),
-				"Invalid PowerPlay Table State Array.", return -1);
-		PP_ASSERT_WITH_CODE((entry_index <= state_arrays->ucNumEntries),
-				"Invalid PowerPlay Table State Array Entry.", return -1);
+		result = get_tonga_state_array(hwmgr, pp_table, &state_arrays);
+		PP_ASSERT_WITH_CODE((result == 0),
+				    "Invalid PowerPlay Table State Array.", return result);
+		PP_ASSERT_WITH_CODE((entry_index < state_arrays->ucNumEntries),
+				    "Invalid PowerPlay Table State Array Entry.", return -1);
 
 		state_entry = GET_FLEXIBLE_ARRAY_MEMBER_ADDR(
 						ATOM_Tonga_State, entries,
@@ -1453,4 +1472,3 @@ int get_powerplay_table_entry_v1_0(struct pp_hwmgr *hwmgr,
 
 	return result;
 }
-