[PATCH] xfsprogs: avoid array overflow in pf_batch_read()

[Dave Chinner]

On Thu, Aug 29, 2013 at 10:55:16PM -0500, Eric Sandeen wrote:
> The while loop in pf_batch_read, and the code preceeding it, is really...
> quite a thing.  I'd love to rewrite it, but I haven't yet found
> a particularly cleaner way.
> 
> It cleverly hides the fact that we might increment "num" past the
> last index of bplist[] and then assign to it.  This corrupts memory.
> 
> Rather than major surgery for now, just go for the simple fix,
> and break out of the loop if we've increased "num" past the
> last index.

looks good.

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com