Hello, This problem was reported in the linux-kernel list, here: https://lkml.org/lkml/2017/7/13/710, and it is said that commit 8e6882545d8c ("scsi: Avoid that scsi_exit_rq() triggers a use-after-free") fixes it. It indeed fixes it as the problem does not exist on 4.13-rc1 (which includes the commit) and on 4.12.x if the patch is applied. However, none of the 4.12 releases since that discussion includes the patch, so the problem is still there. Can that be included in the next stable release? Thanks, Yagmur Oymak