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

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  Re: [PATCH] zram: set physical queue limits to avoid array out of  bounds accesses Hannes Reinecke <hare@suse.de> - 2017-03-06 11:30 +0100

#1593157 — Re: [PATCH] zram: set physical queue limits to avoid array out of bounds accesses

On 03/06/2017 11:23 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().
> 
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
> ---
>  drivers/block/zram/zram_drv.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)

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