INFO: task kworker/1:0:20 blocked for more than 143 seconds.
Not tainted 5.16.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:25256 pid: 20 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:720
usb_kill_urb+0x7f/0xa0 drivers/usb/core/urb.c:715
usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153
usb_get_descriptor+0xdd/0x1d0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:1071
hub_port_init+0x971/0x2e80 drivers/usb/core/hub.c:4922
hub_port_connect drivers/usb/core/hub.c:5282 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5643 [inline]
hub_event+0x21ea/0x4460 drivers/usb/core/hub.c:5725
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
5 locks held by kworker/1:0/20:
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff8880135eb938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90000fbfdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff88801fb65220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88801fb65220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4460 drivers/usb/core/hub.c:5671
#3: ffff88801fb6c5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff88801fb6c5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5249 [inline]
#3: ffff88801fb6c5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#3: ffff88801fb6c5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#3: ffff88801fb6c5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1e17/0x4460 drivers/usb/core/hub.c:5725
#4: ffff88801f920e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5250 [inline]
#4: ffff88801f920e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#4: ffff88801f920e68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#4: ffff88801f920e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1e40/0x4460 drivers/usb/core/hub.c:5725
2 locks held by kworker/1:1/25:
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c76538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90001017db0 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
1 lock held by khungtaskd/27:
#0: ffffffff8bb81320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
2 locks held by getty/3285:
#0: ffff88807f285098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc90002b8e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
3 locks held by kworker/u4:22/5067:
3 locks held by kworker/0:1/21083:
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff8880247d4d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90004dbfdb0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8d30d068 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4052
2 locks held by syz-executor.3/21148:
#0: ffff8880153b4aa8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x119/0x300 net/netfilter/nf_tables_api.c:8990
#1: ffffffff8bb8a6a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8bb8a6a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:836
1 lock held by syz-executor.2/21153:
#0: ffff88806dba1990 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff88806dba1990 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:648
1 lock held by syz-executor.2/21154:
#0: ffffffff8bb8a5b0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x440 kernel/rcu/tree.c:3985
1 lock held by syz-executor.4/21156:
#0: ffff8880360c8290 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff8880360c8290 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:648
2 locks held by syz-executor.4/21158:
#0: ffffffff8d30d068 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d30d068 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
#1: ffffffff8bb8a6a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8bb8a6a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:836
3 locks held by syz-executor.5/21157:
#0: ffff88802f279b90 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff88802f279b90 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:648
#1: ffffffff8d39c8b0 ((netlink_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain kernel/notifier.c:317 [inline]
#1: ffffffff8d39c8b0 ((netlink_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x51/0x90 kernel/notifier.c:306
#2: ffff888076090aa8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nft_rcv_nl_event+0x179/0x670 net/netfilter/nf_tables_api.c:9672
2 locks held by syz-executor.5/21159:
#0: ffff888076090aa8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x119/0x300 net/netfilter/nf_tables_api.c:8990
#1: ffffffff8bb8a5b0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x440 kernel/rcu/tree.c:3985
2 locks held by syz-executor.0/21166:
#0: ffff88801e7716a8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x119/0x300 net/netfilter/nf_tables_api.c:8990
#1: ffffffff8bb8a5b0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x440 kernel/rcu/tree.c:3985
2 locks held by syz-executor.0/21167:
#0: ffffffff90852d38 (nfnl_subsys_nftables){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:93 [inline]
#0: ffffffff90852d38 (nfnl_subsys_nftables){+.+.}-{3:3}, at: nfnetlink_rcv_batch+0x287/0x25f0 net/netfilter/nfnetlink.c:386
#1: ffff88801e7716a8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x119/0x300 net/netfilter/nf_tables_api.c:8990
1 lock held by syz-executor.1/21170:
#0: ffffffff8d30d068 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d30d068 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__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+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21154 Comm: syz-executor.2 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:PageCompound include/linux/page-flags.h:242 [inline]
RIP: 0010:PageHuge+0x2e/0x170 mm/hugetlb.c:1838
Code: 48 89 fb e8 04 07 bf ff be 08 00 00 00 48 89 df e8 67 49 05 00 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 18 01 00 00 48 8b 2b 31 ff 48 c1 ed 10 83 e5 01 89 ee e8 a9
RSP: 0018:ffffc900051ef738 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffea0001e205c0 RCX: ffffffff81b7d119
RDX: 1ffffd40003c40b8 RSI: 0000000000000008 RDI: ffffea0001e205c0
RBP: ffffea0001e205c0 R08: 0000000000000000 R09: ffffea0001e205c7
R10: fffff940003c40b8 R11: 0000000000000000 R12: ffffea0001e205c8
R13: 0000000000000000 R14: 0000000000000000 R15: 00007f571cb64000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f032dc5c998 CR3: 000000000b88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
page_remove_file_rmap mm/rmap.c:1257 [inline]
page_remove_rmap+0x670/0x1480 mm/rmap.c:1351
zap_pte_range mm/memory.c:1357 [inline]
zap_pmd_range mm/memory.c:1467 [inline]
zap_pud_range mm/memory.c:1496 [inline]
zap_p4d_range mm/memory.c:1517 [inline]
unmap_page_range+0xf0e/0x29f0 mm/memory.c:1538
unmap_single_vma+0x198/0x310 mm/memory.c:1583
unmap_vmas+0x16b/0x2f0 mm/memory.c:1615
exit_mmap+0x1d0/0x630 mm/mmap.c:3170
__mmput+0x122/0x4b0 kernel/fork.c:1113
mmput+0x56/0x60 kernel/fork.c:1134
exit_mm kernel/exit.c:507 [inline]
do_exit+0xb27/0x2b40 kernel/exit.c:819
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x2220 kernel/signal.c:2852
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f571cff0e99
Code: Unable to access opcode bytes at RIP 0x7f571cff0e6f.
RSP: 002b:00007f571b966168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000040 RBX: 00007f571d103f60 RCX: 00007f571cff0e99
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00007f571d04aff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7c879a1f R14: 00007f571b966300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 48 89 fb mov %rdi,%rbx
3: e8 04 07 bf ff callq 0xffbf070c
8: be 08 00 00 00 mov $0x8,%esi
d: 48 89 df mov %rbx,%rdi
10: e8 67 49 05 00 callq 0x5497c
15: 48 89 da mov %rbx,%rdx
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 48 c1 ea 03 shr $0x3,%rdx
26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
* 2a: 0f 85 18 01 00 00 jne 0x148 <-- trapping instruction
30: 48 8b 2b mov (%rbx),%rbp
33: 31 ff xor %edi,%edi
35: 48 c1 ed 10 shr $0x10,%rbp
39: 83 e5 01 and $0x1,%ebp
3c: 89 ee mov %ebp,%esi
3e: e8 .byte 0xe8
3f: a9 .byte 0xa9