Re: [git pull] vfs fixes

[Al Viro]

On Sat, Apr 15, 2017 at 09:51:40AM -0700, Linus Torvalds wrote:
> On Fri, Apr 14, 2017 at 11:41 PM, Vegard Nossum <vegard.nossum@xxxxxxxxx> wrote:
> >
> > I'm seeing the same memfd_create/name_to_handle_at/path_lookupat
> > use-after-free that Dmitry was seeing here:
> 
> Ok, see if that is gone in current git with commit c0eb027e5aef ("vfs:
> don't do RCU lookup of empty pathnames")

FWIW, I'm finishing testing of fixes for crap found during the discussion
of that stuff last week (making sure that mntns_install() can't be abused
into setting ->fs->root/->fs->pwd to dentry of NFS referral and its ilk
and doing that in a sane way).