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(parent: c5ef62e) | patch
paride/pf: need to set queue to NULL before put_disk
authorzhengbin <zhengbin13@huawei.com>
Tue, 13 Aug 2019 08:59:44 +0000 (16:59 +0800)
committerJens Axboe <axboe@kernel.dk>
Wed, 4 Sep 2019 13:00:33 +0000 (07:00 -0600)
commitecf4d59a4ebf1237bde1cb2de71a0a6e927d4b0c
tree182b556cc5ec16e6e99e5e4d559461081b12ff5dtree | snapshot
parentc5ef62e60d50e2e9e0ff7aa240ad621eeda35939commit | diff
paride/pf: need to set queue to NULL before put_disk

In pf_init_units, if blk_mq_init_sq_queue fails, need to set queue to
NULL before put_disk, otherwise null-ptr-deref Read will occur.

put_disk
  kobject_put
    disk_release
      blk_put_queue(disk->queue)

Fixes: 77218ddf46d8 ("paride: convert pf to blk-mq")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/paride/pf.c diff | blob | history
kernel
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