INFO: task syz-executor.1:21989 blocked for more than 144 seconds.
      Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:29128 pid:21989 ppid:5017   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 schedule+0xc3/0x180 kernel/sched/core.c:6786
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143
 do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138
 init_module_from_file kernel/module/main.c:3125 [inline]
 __do_sys_finit_module kernel/module/main.c:3171 [inline]
 __se_sys_finit_module+0x48d/0x8d0 kernel/module/main.c:3154
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3cd6e8c389
RSP: 002b:00007f3cd7c73168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f3cd6fabf80 RCX: 00007f3cd6e8c389
RDX: 0000000000000003 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f3cd6ed7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd5223831f R14: 00007f3cd7c73300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8d326af0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8d326eb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
 #0: ffffffff8d326920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by udevd/4445:
2 locks held by getty/4745:
 #0: ffff88814a856098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor.3/5005:
2 locks held by kworker/u4:11/5907:
 #0: ffff888012879138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569
 #1: ffffc90014ff7d20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571
3 locks held by kworker/1:8/13242:
2 locks held by syz-executor.1/23053:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xec2/0xf00 kernel/hung_task.c:379
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 47 Comm: kworker/u4:3 Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_acquire+0xe4d/0x7f70 kernel/locking/lockdep.c:5127
Code: b6 04 00 84 c0 0f 85 ef 0f 00 00 83 3d eb d4 8d 10 00 75 0a 49 83 ff ff 0f 85 c0 0a 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 00 00 <74> 12 4c 89 f7 e8 c9 44 79 00 49 b8 00 00 00 00 00 fc ff df 4d 89
RSP: 0018:ffffc90000b87760 EFLAGS: 00000046
RAX: 1ffff11002d55c8b RBX: ffff888016aae3f8 RCX: ffffffff816b5cff