diff options
| author | Coly Li <[email protected]> | 2021-11-03 14:49:17 +0800 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-11-03 06:00:29 -0600 |
| commit | 8468f45091d2866affed6f6a7aecc20779139173 (patch) | |
| tree | 8a4faac110eed648c5eba0bc2d0ecabe6360fc50 /tools/perf/util/trace-event-scripting.c | |
| parent | 00c5495c54f785beb0f6a34f7a3674d3ea0997d5 (diff) | |
bcache: fix use-after-free problem in bcache_device_free()
In bcache_device_free(), pointer disk is referenced still in
ida_simple_remove() after blk_cleanup_disk() gets called on this
pointer. This may cause a potential panic by use-after-free on the
disk pointer.
This patch fixes the problem by calling blk_cleanup_disk() after
ida_simple_remove().
Fixes: bc70852fd104 ("bcache: convert to blk_alloc_disk/blk_cleanup_disk")
Signed-off-by: Coly Li <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Ulf Hansson <[email protected]>
Cc: [email protected] # v5.14+
Reviewed-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions