syzbot

INFO: task dhcpcd:3675 blocked for more than 143 seconds.
      Not tainted 5.18.0-syzkaller-02752-gfdaf9a5840ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:29120 pid: 3675 ppid:  3179 flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5076 [inline]
 __schedule+0xa00/0x4b30 kernel/sched/core.c:6391
 schedule+0xd2/0x1f0 kernel/sched/core.c:6463
 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
 synchronize_rcu_expedited+0x5a6/0x610 kernel/rcu/tree_exp.h:927
 synchronize_rcu+0x130/0x190 kernel/rcu/tree.c:3843
 synchronize_net+0x4a/0x50 net/core/dev.c:10649
 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382
 packet_do_bind+0x8bc/0xdc0 net/packet/af_packet.c:3217
 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3301
 __sys_bind+0x1e9/0x250 net/socket.c:1729
 __do_sys_bind net/socket.c:1740 [inline]
 __se_sys_bind net/socket.c:1738 [inline]
 __x64_sys_bind+0x6f/0xb0 net/socket.c:1738
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fa066154ce7
RSP: 002b:00007fffb05bd838 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000560c98ea2b60 RCX: 00007fa066154ce7
RDX: 0000000000000014 RSI: 00007fffb05bd848 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000560c994b4b20 R09: 00007fa066215a60
R10: 0000000000020000 R11: 0000000000000217 R12: 0000560c994b1b60
R13: 0000560c994b4a08 R14: 00007fffb05de11c R15: 00007fffb05de144
 </TASK>
INFO: task dhcpcd:3676 blocked for more than 145 seconds.
      Not tainted 5.18.0-syzkaller-02752-gfdaf9a5840ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D
 stack:29160 pid: 3676 ppid:  3179 flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5076 [inline]
 __schedule+0xa00/0x4b30 kernel/sched/core.c:6391
 schedule+0xd2/0x1f0 kernel/sched/core.c:6463
 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
 synchronize_rcu_expedited+0x5a6/0x610 kernel/rcu/tree_exp.h:927
 synchronize_rcu+0x130/0x190 kernel/rcu/tree.c:3843
 synchronize_net+0x4a/0x50 net/core/dev.c:10649
 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382
 packet_do_bind+0x8bc/0xdc0 net/packet/af_packet.c:3217
 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3301
 __sys_bind+0x1e9/0x250 net/socket.c:1729
 __do_sys_bind net/socket.c:1740 [inline]
 __se_sys_bind net/socket.c:1738 [inline]
 __x64_sys_bind+0x6f/0xb0 net/socket.c:1738
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fa066154ce7
RSP: 002b:00007fffb05bd838 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000560c98ea2b60 RCX: 00007fa066154ce7
RDX: 0000000000000014 RSI: 00007fffb05bd848 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000560c994b4ca0 R09: 00007fa066215a60
R10: 0000000000020000 R11: 0000000000000217 R12: 0000560c994b1b60
R13: 0000560c994b4b88 R14: 00007fffb05de11c R15: 00007fffb05de144
 </TASK>
INFO: task dhcpcd:3678 blocked for more than 146 seconds.
      Not tainted 5.18.0-syzkaller-02752-gfdaf9a5840ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:29160 pid: 3678 ppid:  3179 flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5076 [inline]
 __schedule+0xa00/0x4b30 kernel/sched/core.c:6391
 schedule+0xd2/0x1f0 kernel/sched/core.c:6463
 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
 synchronize_rcu_expedited+0x5a6/0x610 kernel/rcu/tree_exp.h:927
 synchronize_rcu+0x130/0x190 kernel/rcu/tree.c:3843
 synchronize_net+0x4a/0x50 net/core/dev.c:10649
 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382
 packet_do_bind+0x8bc/0xdc0 net/packet/af_packet.c:3217
 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3301
 __sys_bind+0x1e9/0x250 net/socket.c:1729
 __do_sys_bind net/socket.c:1740 [inline]
 __se_sys_bind net/socket.c:1738 [inline]
 __x64_sys_bind+0x6f/0xb0 net/socket.c:1738
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fa066154ce7
RSP: 002b:00007fffb05bd838 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000560c98ea2b60 RCX: 00007fa066154ce7
RDX: 0000000000000014 RSI: 00007fffb05bd848 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000560c994b49a0 R09: 00007fa066215a60
R10: 0000000000020000 R11: 0000000000000217 R12: 0000560c994b1b60
R13: 0000560c994b4398 R14: 00007fffb05de11c R15: 00007fffb05de144
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/1:0/22:
9 locks held by kworker/1:1/26:
1 lock held by khungtaskd/28:
 #0: 
ffffffff8bd85460
 (
rcu_read_lock
){....}-{1:2}
, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
6 locks held by kworker/0:2/141:
9 locks held by kworker/1:3/3264:
2 locks held by getty/3279:
 #0: 
ffff888148712098
 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: 
ffffc90002ce62e8
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
6 locks held by kworker/1:4/3621:
3 locks held by udevd/3622:
 #0: ffff88807dda0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
 #0: ffff88807dda0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x6f0 fs/kernfs/file.c:237
 #1: 
ffff88814530fa00 (kn->active#86){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:199 [inline]
ffff88814530fa00 (kn->active#86){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x6f0 fs/kernfs/file.c:237
 #2: ffff8880167cd220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
 #2: ffff8880167cd220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
6 locks held by kworker/0:3/3625:
1 lock held by dhcpcd/3673:
 #0: 
ffff88801bf84410
 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:732 [inline]
 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:649
2 locks held by dhcpcd/3674:
 #0: 
ffff8880743f6130
 (
sk_lock-AF_PACKET
){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3184
 #1: 
ffffffff8bd8f760 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
ffffffff8bd8f760 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d3/0x610 kernel/rcu/tree_exp.h:927
1 lock held by dhcpcd/3675:
 #0: 
ffff88807dc42130
 (
sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/3676:
 #0: 
ffff88807dc44130
 (
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1682 [inline]
, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/3678:
 #0: ffff88807dbd0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
 #0: ffff88807dbd0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/3684:
 #0: ffff88807de24130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
 #0: ffff88807de24130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3184

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-syzkaller-02752-gfdaf9a5840ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:369
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3264 Comm: kworker/1:3 Not tainted 5.18.0-syzkaller-02752-gfdaf9a5840ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__lock_release kernel/locking/lockdep.c:5318 [inline]
RIP: 0010:lock_release+0x217/0x780 kernel/locking/lockdep.c:5654
Code: e8 de 0c ff ff 48 85 c0 48 89 c3 0f 84 c3 03 00 00 48 8d 78 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a7 04 00 00 8b
RSP: 0018:ffffc900001e0de8 EFLAGS: 00000803
RAX: dffffc0000000000 RBX: ffff88801d050b78 RCX: ffffc900001e0e38
RDX: 0000000000000000 RSI: ffffffff8bda5a48 RDI: ffff88801d050b9c
RBP: 1ffff9200003c1bf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8bda5a48
R13: 0000000000000008 R14: ffff88801d050a58 R15: ffff88801d050000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffcbf40228 CR3: 000000001fa4d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
 timekeeping_get_delta kernel/time/timekeeping.c:253 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:387 [inline]
 ktime_get_update_offsets_now+0x15e/0x5c0 kernel/time/timekeeping.c:2317
 hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
 hrtimer_interrupt+0x142/0x790 kernel/time/hrtimer.c:1793
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 71 e6 4a 00 5d be 03 00 00 00 e9 f6 05 7f 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 e9 dc 88 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90002f7e850 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801d050000 RSI: ffffffff8160407c RDI: 0000000000000003
RBP: ffffc90002f7e890 R08: 0000000000000000 R09: ffffffff90087937
R10: ffffffff81604072 R11: 0000000000000000 R12: 0000000000000036
R13: ffff888011bbd880 R14: 0000000000000200 R15: ffffc90002f7e9b0
 console_trylock_spinning kernel/printk/printk.c:1908 [inline]
 vprintk_emit+0x3f2/0x5f0 kernel/printk/printk.c:2271
 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4604
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4615
 __dev_printk+0xcf/0xf5 drivers/base/core.c:4627
 _dev_warn+0xd7/0x109 drivers/base/core.c:4671
 hid_parser_main.cold+0x4f/0xf1 drivers/hid/hid-core.c:633
 hid_open_report+0x37f/0x650 drivers/hid/hid-core.c:1265
 hid_parse include/linux/hid.h:1100 [inline]
 cp_probe+0x5c/0xc0 drivers/hid/hid-cypress.c:135
 hid_device_probe+0x2bd/0x3f0 drivers/hid/hid-core.c:2598
 call_driver_probe drivers/base/dd.c:542 [inline]
 really_probe+0x23e/0xb20 drivers/base/dd.c:621
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:752
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:782
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:899
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x228/0x4a0 drivers/base/dd.c:970
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xb83/0x1e20 drivers/base/core.c:3405
 hid_add_device+0x344/0x9d0 drivers/hid/hid-core.c:2748
 usbhid_probe+0xb49/0x1040 drivers/hid/usbhid/hid-core.c:1424
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:542 [inline]
 really_probe+0x23e/0xb20 drivers/base/dd.c:621
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:752
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:782
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:899
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x228/0x4a0 drivers/base/dd.c:970
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xb83/0x1e20 drivers/base/core.c:3405
 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:542 [inline]
 really_probe+0x23e/0xb20 drivers/base/dd.c:621
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:752
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:782
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:899
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x228/0x4a0 drivers/base/dd.c:970
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xb83/0x1e20 drivers/base/core.c:3405
 usb_new_device.cold+0x641/0x1091 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5665 [inline]
 hub_event+0x25c6/0x4680 drivers/usb/core/hub.c:5747
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>
----------------
Code disassembly (best guess):
   0:	e8 de 0c ff ff       	callq  0xffff0ce3
   5:	48 85 c0             	test   %rax,%rax
   8:	48 89 c3             	mov    %rax,%rbx
   b:	0f 84 c3 03 00 00    	je     0x3d4
  11:	48 8d 78 24          	lea    0x24(%rax),%rdi
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
* 2a:	48 89 f8             	mov    %rdi,%rax <-- trapping instruction
  2d:	83 e0 07             	and    $0x7,%eax
  30:	83 c0 03             	add    $0x3,%eax
  33:	38 d0                	cmp    %dl,%al
  35:	7c 08                	jl     0x3f
  37:	84 d2                	test   %dl,%dl
  39:	0f 85 a7 04 00 00    	jne    0x4e6
  3f:	8b                   	.byte 0x8b