On 8/21/21 8:12 PM, Bart Van Assche wrote: > If I run blktests nvmeof-mp/012 then a KASAN use-after-free complaint > appears. Since I haven't seen this warning with previous kernel versions, > I think this is a regression. Given the presence of bd_unlink_disk_holder() > in the call trace, can you take a look Christoph? (replying to my own e-mail) Reverting commit fbd9a39542ec ("block: remove the extra kobject reference in bd_link_disk_holder") makes the KASAN complaints disappear. However, the srp tests and one other test fail with that commit reverted: root:software/blktests# grep -rli status.fail . | sort ./results/nodev/nvmeof-mp/001 ./results/nodev/srp/002 ./results/nodev/srp/007 ./results/nodev/srp/009 ./results/nodev/srp/011 ./results/nodev/srp/012 ./results/nodev/srp/013 ./results/nodev/srp/014 Bart.