[nrf fromtree] Bluetooth: Mesh: Fix missing clear dup cache

When lpn reject message, should clear dup cache to avoid dup check next mesh message. Signed-off-by: Lingao Meng <[email protected]> (cherry picked from commit 5867492)
nrfconnect · Oct 31, 2022 · cbe3b8f · cbe3b8f
1 parent 15a5612
commit cbe3b8f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/subsys/bluetooth/mesh/net.c b/subsys/bluetooth/mesh/net.c
@@ -125,8 +125,8 @@ static bool check_dup(struct net_buf_simple *data)
 		}
 	}
 
-	dup_cache[dup_cache_next++] = val;
 	dup_cache_next %= ARRAY_SIZE(dup_cache);
+	dup_cache[dup_cache_next++] = val;
 
 	return false;
 }
@@ -850,6 +850,7 @@ void bt_mesh_net_recv(struct net_buf_simple *data, int8_t rssi,
 		BT_WARN("Removing rejected message from Network Message Cache");
 		/* Rewind the next index now that we're not using this entry */
 		msg_cache[--msg_cache_next].src = BT_MESH_ADDR_UNASSIGNED;
+		dup_cache[--dup_cache_next] = 0;
 	}
 
 	/* Relay if this was a group/virtual address, or if the destination