Minchan Kim ae94264ed4 zram: fix null dereference of handle ...

In testing I found handle passed to zs_map_object in __zram_bvec_read is
NULL so eh kernel goes oops in pin_object().

The reason is there is no routine to check the slot's freeing after
getting the slot's lock.  This patch fixes it.

[minchan@kernel.org: v2]
  Link: http://lkml.kernel.org/r/1505887347-10881-1-git-send-email-minchan@kernel.org
Link: http://lkml.kernel.org/r/1505788488-26723-1-git-send-email-minchan@kernel.org
Fixes: 1f7319c742 ("zram: partial IO refactoring")
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2017-10-03 17:54:24 -07:00

..

aoe

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drbd

drbd: remove BIOSET_NEED_RESCUER flag from drbd_{md_,}io_bio_set

2017-08-30 08:10:02 -06:00

mtip32xx

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paride

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rsxx

block: pass in queue to inflight accounting

2017-08-09 13:09:16 -06:00

xen-blkback

Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block

2017-09-07 11:59:42 -07:00

zram

zram: fix null dereference of handle

2017-10-03 17:54:24 -07:00

amiflop.c

…

ataflop.c

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brd.c

brd: fix overflow in __brd_direct_access

2017-09-25 08:56:05 -06:00

cryptoloop.c

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DAC960.c

block: DAC960: shut up format-overflow warning

2017-07-29 09:00:03 -06:00

DAC960.h

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floppy.c

block: replace bi_bdev with a gendisk pointer and partitions index

2017-08-23 12:49:55 -06:00

Kconfig

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2017-09-07 21:11:05 -07:00

loop.c

Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block

2017-09-07 11:59:42 -07:00

loop.h

loop: remove union of use_aio and ref in struct loop_cmd

2017-09-25 08:56:05 -06:00

Makefile

scsi: cciss: Drop obsolete driver

2017-08-24 22:28:57 -04:00

nbd.c

nbd: ignore non-nbd ioctl's

2017-09-25 08:56:05 -06:00

null_blk.c

Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block

2017-09-07 11:59:42 -07:00

pktcdvd.c

block: replace bi_bdev with a gendisk pointer and partitions index

2017-08-23 12:49:55 -06:00

ps3disk.c

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ps3vram.c

block/ps3vram: Check return of ps3vram_cache_init

2017-08-17 23:03:44 +10:00

rbd_types.h

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rbd.c

rbd: silence bogus uninitialized use warning in rbd_acquire_lock()

2017-09-06 19:56:42 +02:00

skd_main.c

skd: Let the block layer core choose .nr_requests

2017-08-29 09:43:06 -06:00

skd_s1120.h

skd: Use __packed only when needed

2017-08-18 08:45:29 -06:00

smart1,2.h

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sunvdc.c

sunvdc: prevent sunvdc panic when mpgroup disk added to guest domain

2017-08-09 22:22:32 -07:00

swim3.c

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swim_asm.S

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swim.c

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sx8.c

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umem.c

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umem.h

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virtio_blk.c

Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block

2017-09-07 11:59:42 -07:00

xen-blkfront.c

Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block

2017-09-07 11:59:42 -07:00

xsysace.c

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z2ram.c

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