scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
Dan Carpenter authored
[ Upstream commit 9d7464b1 ]

The pr_debug() dereferences "cmd" after we already freed it by calling
tcmu_free_cmd(cmd).  The debug printk needs to be done earlier.

Link: https://lore.kernel.org/r/20200523101129.GB98132@mwanda
Fixes: 61fb2482

 ("scsi: target: tcmu: Userspace must not complete queued commands")
Reviewed-by: default avatarMike Christie <mchristi@redhat.com>
Reviewed-by: default avatarDavid Disseldorp <ddiss@suse.de>
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
6fe7d862
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