linux-kernel - Re: Linux 2.6.26-rc4

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1212499940.3025.51.camel@raven.themaw.net>
Date:	Tue, 03 Jun 2008 21:32:18 +0800
From:	Ian Kent <raven@...maw.net>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Miklos Szeredi <miklos@...redi.hu>, jesper@...gh.cc,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: Linux 2.6.26-rc4


On Tue, 2008-06-03 at 21:31 +0800, Ian Kent wrote:
> On Tue, 2008-06-03 at 11:48 +0100, Al Viro wrote:
> > On Tue, Jun 03, 2008 at 12:37:59PM +0200, Miklos Szeredi wrote:
> > > > http://www.kerneloops.org/raw.php?rawid=12419&msgid=
> > > > 
> > > > Looks like a negative inode in S_ISDIR(mnt->mnt_root->d_inode->i_mode),
> > > > which would be due to NFS not properly filling in its root dentry?
> > > 
> > > On second thought it's S_ISDIR(path->dentry->d_inode->i_mode), which
> > > means it's an autofs thing.
> > 
> > It is path->dentry, all right, but the question is how'd it get that way.
> > Look: we got that nd.path.dentry out of path_lookup() with LOOKUP_FOLLOW
> > as flags.  Then we'd passed it through do_new_mount() to do_add_mount()
> > without changes.  And went through
> >         /* Something was mounted here while we slept */
> >         while (d_mountpoint(nd->path.dentry) &&
> >                follow_down(&nd->path.mnt, &nd->path.dentry))
> >                 ;
> 
> And this relates to previous in that a mount isn't done by autofs until
> until after the directory is created, at which time the (->mkdir())
> dentry is hashed.

Oh .. and made positive at the same time.

> 
> Ian
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/