[v6.1] INFO: task hung in reg_check_chans_work (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 8e60a714ba3b Linux 6.1.132
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16d447e4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=ebc45e145d6155ea
dashboard link: https://syzkaller.appspot.com/bug?extid=8e8f0f982cb11244072e
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/07ce79e50243/disk-8e60a714.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d1675e98295/vmlinux-8e60a714.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1bf8fdf8b6d1/bzImage-8e60a714.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8e8f0f...@syzkaller.appspotmail.com

INFO: task kworker/1:7:4298 blocked for more than 143 seconds.
Not tainted 6.1.132-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7 state:D stack:22016 pid:4298 ppid:2 flags:0x00004000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6561
schedule+0xbf/0x180 kernel/sched/core.c:6637
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
reg_check_chans_work+0x8d/0xdb0 net/wireless/reg.c:2499
process_one_work+0x917/0x1260 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
INFO: task syz.4.308:5408 blocked for more than 149 seconds.
Not tainted 6.1.132-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.308 state:D stack:25864 pid:5408 ppid:4249 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6561
schedule+0xbf/0x180 kernel/sched/core.c:6637
synchronize_rcu_expedited+0x777/0x930 kernel/rcu/tree_exp.h:977


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.