On Thu, Oct 24, 2024 at 09:55:44AM -0700, Darrick J. Wong wrote:
> On Thu, Oct 24, 2024 at 01:51:05PM +1100, Dave Chinner wrote:
> > From: Dave Chinner <dchinner@xxxxxxxxxx>
> >
> > It's just read in from the superblock and used without doing any
> > validity checks at all on the value.
> >
> > Fixes: fb4f2b4e5a82 ("xfs: add sparse inode chunk alignment superblock field")
> > Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
>
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.2
Yeah. And probably what ever fix we decide on, too.
> Oof yeah that's quite a gap!
*nod*
What surprises me is that syzbot hasn't found this - it's exactly
the sort of thing that randomised structure fuzzing is supposed to
find.....
> Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Thanks!
-Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
