Hi,
If I run test srp/015 from the blktests suite then the following appears
in the kernel log:
==================================================================
BUG: KASAN: null-ptr-deref in __list_del_entry_valid+0x4d/0xe0
Read of size 8 at addr 0000000000000000 by task kworker/u16:3/161
CPU: 5 PID: 161 Comm: kworker/u16:3 Not tainted 5.15.0-rc1-dbg+ #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a-rebuilt.opensuse.org 04/01/2014
Workqueue: iw_cm_wq cm_work_handler [iw_cm]
Call Trace:
show_stack+0x52/0x58
dump_stack_lvl+0x5b/0x82
kasan_report.cold+0x52/0x57
__asan_load8+0x69/0x90
__list_del_entry_valid+0x4d/0xe0
_cma_cancel_listens+0x49/0x230 [rdma_cm]
_destroy_id+0x4e/0x420 [rdma_cm]
destroy_id_handler_unlock+0xc4/0x200 [rdma_cm]
iw_conn_req_handler+0x335/0x370 [rdma_cm]
cm_conn_req_handler+0x546/0x7d0 [iw_cm]
cm_work_handler+0x419/0x480 [iw_cm]
process_one_work+0x59d/0xb00
worker_thread+0x8f/0x5c0
kthread+0x1fc/0x230
ret_from_fork+0x1f/0x30
==================================================================
I think this is a regression. This happened with commit a17a1faf5d3e
("RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure").
Thanks,
Bart.
