syzbot

INFO: task syz-executor.3:3684 blocked for more than 143 seconds.
      Not tainted 5.15.161-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:25040 pid: 3684 ppid:  3529 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 pnet_find_base_ndev+0x6f/0x200 net/smc/smc_pnet.c:935
 smc_pnet_add_eth net/smc/smc_pnet.c:357 [inline]
 smc_pnet_enter net/smc/smc_pnet.c:492 [inline]
 smc_pnet_add+0x41b/0x12b0 net/smc/smc_pnet.c:555