Re: [PATCH v2] fanotify: Disallow permission events for proc filesystem

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On Tue 28-05-19 19:02:46, Amir Goldstein wrote:
> On Tue, May 28, 2019 at 6:54 PM Jan Kara <jack@xxxxxxx> wrote:
> >
> > On Thu 16-05-19 13:56:19, Jan Kara wrote:
> > > Proc filesystem has special locking rules for various files. Thus
> > > fanotify which opens files on event delivery can easily deadlock
> > > against another process that waits for fanotify permission event to be
> > > handled. Since permission events on /proc have doubtful value anyway,
> > > just disallow them.
> > >
> > > Link: https://lore.kernel.org/linux-fsdevel/20190320131642.GE9485@xxxxxxxxxxxxxx/
> > > Signed-off-by: Jan Kara <jack@xxxxxxx>
> >
> > Amir, ping? What do you think about this version of the patch?
> 
> Sorry, I reviewed but forgot to reply.
> You may add:
> Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>

Thanks! I'll push it to my tree for the next merge window then.

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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