On Wed, Jul 05, 2017 at 10:50:09AM -0400, Mimi Zohar wrote: > [Cc'ing linux-ima-users] > > On Wed, 2017-06-28 at 16:41 +0200, Christoph Hellwig wrote: > > NAK - we'll need an explicit method for the integrity code. > > > > And just curious - what filesystem that you care about actually > > implements ->read instead of ->read_iter? We shouldn't be doing that > > for real file systems anymore. > > Right, pseudo filesystems are using ->read. The existing builtin > measurement policies exclude a number of pseudo filesystems, but not > efivarfs. Unfortunately, we do not know what type of custom policies > are currently being used. efi variables contain information that may influence userspace behaviour and can also be modified out of band, so I think there's a reasonable argument that they should be measured. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx
