Loader 1.1.73 - Null pointer dereference in loader_read_json_layer()

[NorbertGarnysAMD]

Following code in loader_read_json_layer() (loader.c:2840 and more)

                char *inst_ext_name = cJSON_Print(inst_ext_json);
                size_t len = strlen(inst_ext_name) >= MAX_STRING_SIZE ? MAX_STRING_SIZE - 3 : strlen(inst_ext_name) - 2;

can result in reading from 0x0 when cJSON_Print() return null pointer which is possible as it uses dynamic allocation internally. This can be triggered with dEQP-VK.api.object_management.alloc_callback_fail.instance.