On Thu, Mar 24, 2022 at 02:09:09PM -0700, Axel Rasmussen wrote: > This patch avoids the panic by implementing a custom setattr for > memfd_secret, which detects resizes specifically (setting the size for > the first time works just fine, since there are no existing pages to try > to zero), and rejects them as not supported (ENOTSUP). Isn't ENOTTY the normal return value for this? Or even ENOSYS?