minor fix

Author: Hritik Gupta

core/iwasm/common/wasm_shared_memory.c

@@ -124,8 +124,8 @@ notify_stale_threads_on_exception(WASMModuleInstanceCommon *module_inst)
 
     /* allocate memory */
     uint32 total_size = sizeof(void *) * total_elem_count;
-    void *temp_addr[total_size];
-    memset(temp_addr, 0, sizeof(temp_addr));
+    void *temp_addr[total_elem_count];
+    memset(temp_addr, 0, total_size);
 
     args->addr = temp_addr;