INFO: task syz.1.652:7476 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.652       state:D stack:25096 pid:7476  tgid:7476  ppid:5836   task_flags:0x400040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x724/0xe80
 pipe_release+0x48/0x330
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f29ae98e9a9
RSP: 002b:00007ffd67bee098 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f29aebb7ba0 RCX: 00007f29ae98e9a9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f29aebb7ba0 R08: 00000000000210f4 R09: 0000001a67bee38f
R10: 00007f29aebb7ac0 R11: 0000000000000246 R12: 00000000000117af
R13: 00007ffd67bee190 R14: ffffffffffffffff R15: 00007ffd67bee1b0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by udevd/5279:
2 locks held by getty/5658:
 #0: ffff888021aa20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by syz-executor/5774:
1 lock held by syz-executor/5832:
1 lock held by syz-executor/5836:
1 lock held by syz.1.652/7476:
 #0: ffff8881109ecc68 (&pipe->mutex){+.+.}-{4:4}, at: pipe_release+0x48/0x330
1 lock held by syz.1.652/7477:
 #0: ffff8881109ecc68 (&pipe->mutex){+.+.}-{4:4}, at: splice_file_to_pipe+0x2e/0x440
1 lock held by syz.2.693/7564:
1 lock held by syz.2.693/7566:
1 lock held by dhcpcd-run-hook/7565:
1 lock held by udevd/7567:
1 lock held by udevd/7569:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xfee/0x1030
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 7569 Comm: udevd Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 be 85 03 66
RSP: 0018:ffffc90004d97b08 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc90004d97be0 R08: ffffc90004d97b67 R09: 1ffff920009b2f6c
R10: dffffc0000000000 R11: fffff520009b2f6d R12: ffff888136631401
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881366314f0
FS:  00007f3f469aac80(0000) GS:ffff8881a3c26000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f469aac98 CR3: 0000000109052000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 arch_irq_work_raise+0x6d/0x80
 __irq_work_queue_local+0x1d7/0x550
 irq_work_queue+0x99/0x140
 bpf_send_signal_common+0x3b4/0x540
 bpf_send_signal+0x1d/0x30
 bpf_prog_7ba5217f62dcd359+0x41/0x49
 bpf_trace_run2+0x284/0x4b0
 __bpf_trace_sys_enter+0x38/0x60
 trace_sys_enter+0xb0/0x120
 syscall_trace_enter+0xf9/0x160
 do_syscall_64+0xd3/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f46516b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcfc6f6ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3f46516b6a
RDX: 0000000000000080 RSI: 00007ffcfc6f6fc8 RDI: 0000000000000003
RBP: 00007ffcfc6f6f18 R08: 0000000000000007 R09: 0de324128713c641
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055debf768170
R13: 00007ffcfc6f6f18 R14: 0000000000000001 R15: 000055debf749910
 </TASK>
