[snip] >> +static struct long_clone_arg *get_long_clone_arg(int __user >> *child_tidptr) >> +{ >> + int size; >> + struct long_clone_arg *carg; >> + >> + if (get_user(size, child_tidptr)) >> + return ERR_PTR(-EFAULT); >> + >> + if (size > sizeof(struct long_clone_arg)) >> + return ERR_PTR(-EINVAL); > > This means that software built against a newer kernel won't work on an > older one. Surely that's not intended? It is intended. If I ask an old kernel to clone the mq namespace, but it doesn't support such, that I'd better like to get an -EINVAL error rather than be silently held in an old global namespace. [snip] _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers