Johannes Thumshirn ca6d40bb08 zram: set physical queue limits to avoid array out of bounds accesses ...

[ Upstream commit 0bc315381f ]

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>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-12-16 10:33:53 +01:00

..

Kconfig

zram: remove obsolete ZRAM_DEBUG option

2015-06-25 17:00:35 -07:00

Makefile

zram: add lz4 algorithm backend

2014-04-07 16:36:01 -07:00

zcomp_lz4.c

zram: try vmalloc() after kmalloc()

2016-02-17 12:31:05 -08:00

zcomp_lz4.h

zram: add lz4 algorithm backend

2014-04-07 16:36:01 -07:00

zcomp_lzo.c

zram: try vmalloc() after kmalloc()

2016-02-17 12:31:05 -08:00

zcomp_lzo.h

zram: introduce compressing backend abstraction

2014-04-07 16:36:01 -07:00

zcomp.c

zram/zcomp: use GFP_NOIO to allocate streams

2016-02-17 12:31:05 -08:00

zcomp.h

zram: check comp algorithm availability earlier

2015-06-25 17:00:37 -07:00

zram_drv.c

zram: set physical queue limits to avoid array out of bounds accesses

2017-12-16 10:33:53 +01:00

zram_drv.h

zsmalloc/zram: introduce zs_pool_stats api

2015-09-08 15:35:28 -07:00