Hello. Américo Wang wrote: > How about going to the line: > > current->fsuid = fsuid; > > ? Because when argv_split() fails, helper_argv is NULL and doesn't need > to be checked again. I didn't understand what you say. I'm saying that "do_coredump() may accesss helper_argv[0] when helper_argv == NULL", which will result in "NULL pointer dereference" problem. Yes, this problem unlikely happens. Thus, if (!helper_argv) goto fail_unlock; may be enough. Regards. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html