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Date: Mon, 6 Mar 2017 12:18:40 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Jens Axboe <axboe@fb.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>,
        Minchan Kim <minchan@kernel.org>,
        Nitin Gupta <ngupta@vflare.org>,
        Christoph Hellwig <hch@lst.de>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
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        Linux Kernel Mailinglist <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] zram: set physical queue limits to avoid array out of
 bounds accesses
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On Mon, 6 Mar 2017 08:21:11 -0700 Jens Axboe <axboe@fb.com> 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?