Luis Henriques 3aaf14da80 zram: fix possible use after free in zcomp_create() ... zcomp_create() verifies the success of zcomp_strm_{multi,single}_create() through comp->stream, which can potentially be pointing to memory that was freed if these functions returned an error. While at it, replace a 'ERR_PTR(-ENOMEM)' by a more generic 'ERR_PTR(error)' as in the future zcomp_strm_{multi,siggle}_create() could return other error codes. Function documentation updated accordingly. Fixes: beca3ec71f ("zram: add multi stream functionality") Signed-off-by: Luis Henriques <luis.henriques@canonical.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-09-17 21:16:07 -07:00
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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.c	zram: fix possible use after free in zcomp_create()	2015-09-17 21:16:07 -07:00
zcomp.h	zram: check comp algorithm availability earlier	2015-06-25 17:00:37 -07:00
zcomp_lz4.c	zram: add lz4 algorithm backend	2014-04-07 16:36:01 -07:00
zcomp_lz4.h	zram: add lz4 algorithm backend	2014-04-07 16:36:01 -07:00
zcomp_lzo.c	zram: introduce compressing backend abstraction	2014-04-07 16:36:01 -07:00
zcomp_lzo.h	zram: introduce compressing backend abstraction	2014-04-07 16:36:01 -07:00
zram_drv.c	zram: unify error reporting	2015-09-08 15:35:28 -07:00
zram_drv.h	zsmalloc/zram: introduce zs_pool_stats api	2015-09-08 15:35:28 -07:00