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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-10-23 20:40:26 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-10-23 20:40:26 +0200 |
| commit | 7ad58c028652753814054f4e3ac58f925e7343f4 (patch) | |
| tree | 2e3bc1c5e3c98078b970483cd49a49d7c1ae0dcf /fs/partitions | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vap... (diff) | |
| download | linux-7ad58c028652753814054f4e3ac58f925e7343f4.tar.xz linux-7ad58c028652753814054f4e3ac58f925e7343f4.zip | |
block: fix use-after-free bug in blk throttle code
blk_throtl_exit() frees the throttle data hanging off the queue
in blk_cleanup_queue(), but blk_put_queue() will indirectly
dereference this data when calling blk_sync_queue() which in
turns calls throtl_shutdown_timer_wq().
Fix this by moving the freeing of the throttle data to when
the queue is truly being released, and post the call to
blk_sync_queue().
Reported-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/partitions')
0 files changed, 0 insertions, 0 deletions