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| author | Minchan Kim <minchan@kernel.org> | 2017-10-03 16:15:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-03 17:54:24 -0700 |
| commit | ae94264ed4b0cf7cd887947650db4c69acb62072 (patch) | |
| tree | 5e291f4bf79421a4a5b46122b31841844a67a98d /samples/watchdog | |
| parent | a872eb2131e91ce7c89a8888974a5e22a272b12f (diff) | |
| download | op-kernel-dev-ae94264ed4b0cf7cd887947650db4c69acb62072.zip op-kernel-dev-ae94264ed4b0cf7cd887947650db4c69acb62072.tar.gz | |
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: 1f7319c74275 ("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>
Diffstat (limited to 'samples/watchdog')
0 files changed, 0 insertions, 0 deletions
