Re: [PATCH] zram: set physical queue limits to avoid array out of bounds accesses

From: Andrew Morton
Date: Mon Mar 06 2017 - 16:36:14 EST


On Mon, 6 Mar 2017 08:21:11 -0700 Jens Axboe <axboe@xxxxxx> wrote:

> On 03/06/2017 03:23 AM, Johannes Thumshirn wrote:
> > zram can handle at most SECTORS_PER_PAGE sectors in a bio's bvec. When using
> > the NVMe over Fabrics loopback target which potentially sends a huge bulk of
> > pages attached to the bio's bvec this results in a kernel panic because of
> > array out of bounds accesses in zram_decompress_page().
>
> Applied, thanks.

With an added cc:stable, hopefully?