INFO: task dhcpcd:23222 blocked for more than 143 seconds. Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:29152 pid:23222 ppid: 3172 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4db0 kernel/sched/core.c:6295 schedule+0xd2/0x260 kernel/sched/core.c:6368 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline] synchronize_rcu_expedited+0x5a8/0x620 kernel/rcu/tree_exp.h:840 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3785 synchronize_net+0x4a/0x50 net/core/dev.c:10322 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382 packet_do_bind+0x8ad/0xd70 net/packet/af_packet.c:3207 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3291 __sys_bind+0x1e9/0x250 net/socket.c:1697 __do_sys_bind net/socket.c:1708 [inline] __se_sys_bind net/socket.c:1706 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1706 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+0x44/0xae RIP: 0033:0x7f37d4741ce7 RSP: 002b:00007ffd666c0158 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055f10727bb60 RCX: 00007f37d4741ce7 RDX: 0000000000000014 RSI: 00007ffd666c0168 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055f108686c60 R09: 00007f37d4802a60 R10: 0000000000010000 R11: 0000000000000217 R12: 000055f10868b200 R13: 000055f10868aa98 R14: 00007ffd666e0a3c R15: 00007ffd666e0a64 INFO: task dhcpcd:23238 blocked for more than 144 seconds. Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:29152 pid:23238 ppid: 3172 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4db0 kernel/sched/core.c:6295 schedule+0xd2/0x260 kernel/sched/core.c:6368 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline] synchronize_rcu_expedited+0x5a8/0x620 kernel/rcu/tree_exp.h:840 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3785 synchronize_net+0x4a/0x50 net/core/dev.c:10322 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382 packet_do_bind+0x8ad/0xd70 net/packet/af_packet.c:3207 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3291 __sys_bind+0x1e9/0x250 net/socket.c:1697 __do_sys_bind net/socket.c:1708 [inline] __se_sys_bind net/socket.c:1706 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1706 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+0x44/0xae RIP: 0033:0x7f37d4741ce7 RSP: 002b:00007ffd666c0158 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055f10727bb60 RCX: 00007f37d4741ce7 RDX: 0000000000000014 RSI: 00007ffd666c0168 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055f108686420 R09: 00007f37d4802a60 R10: 0000000000010000 R11: 0000000000000217 R12: 000055f10868b200 R13: 000055f108686308 R14: 00007ffd666e0a3c R15: 00007ffd666e0a64 INFO: task dhcpcd:23254 blocked for more than 145 seconds. Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:29152 pid:23254 ppid: 3172 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4db0 kernel/sched/core.c:6295 schedule+0xd2/0x260 kernel/sched/core.c:6368 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline] synchronize_rcu_expedited+0x5a8/0x620 kernel/rcu/tree_exp.h:840 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3785 synchronize_net+0x4a/0x50 net/core/dev.c:10322 __unregister_prot_hook+0x48a/0x5a0 net/packet/af_packet.c:382 packet_do_bind+0x8ad/0xd70 net/packet/af_packet.c:3207 packet_bind+0x152/0x1b0 net/packet/af_packet.c:3291 __sys_bind+0x1e9/0x250 net/socket.c:1697 __do_sys_bind net/socket.c:1708 [inline] __se_sys_bind net/socket.c:1706 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1706 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+0x44/0xae RIP: 0033:0x7f37d4741ce7 RSP: 002b:00007ffd666c0158 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055f10727bb60 RCX: 00007f37d4741ce7 RDX: 0000000000000014 RSI: 00007ffd666c0168 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055f108686c60 R09: 00007f37d4802a60 R10: 0000000000010000 R11: 0000000000000217 R12: 000055f10868b200 R13: 000055f108686488 R14: 00007ffd666e0a3c R15: 00007ffd666e0a64 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bb83be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460 1 lock held by khugepaged/33: #0: ffffffff8bc6bce8 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:798 2 locks held by getty/3268: #0: ffff88814b56c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077 3 locks held by kworker/0:0/3672: 1 lock held by syz-executor206/3684: 3 locks held by kworker/1:4/3735: 2 locks held by dhcpcd/22805: #0: ffff88806e524410 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline] #0: ffff88806e524410 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:649 #1: ffffffff8bb8d828 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #1: ffffffff8bb8d828 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:840 2 locks held by dhcpcd/22992: #0: ffff88801ce42130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] ffff88801ce42130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xd70 net/packet/af_packet.c:3174 #1: ffffffff8bb8d828 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #1: ffffffff8bb8d828 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:840 1 lock held by dhcpcd/23222: #0: ffff88807546c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff88807546c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xd70 net/packet/af_packet.c:3174 1 lock held by dhcpcd/23238: #0: ffff888022168130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff888022168130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xd70 net/packet/af_packet.c:3174 1 lock held by dhcpcd/23254: #0: ffff8880760bc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff8880760bc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xd70 net/packet/af_packet.c:3174 1 lock held by dhcpcd/1489: #0: ffff888018b8e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff888018b8e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xd70 net/packet/af_packet.c:3174 2 locks held by syz-executor206/17319: 1 lock held by syz-executor206/17324: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #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:212 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:369 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3672 Comm: kworker/0:0 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events uhid_device_add_worker RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3695 [inline] RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3714 [inline] RIP: 0010:validate_chain kernel/locking/lockdep.c:3769 [inline] RIP: 0010:__lock_acquire+0x16e5/0x5470 kernel/locking/lockdep.c:5027 Code: df 48 89 e9 48 8b 6c 24 08 eb 06 48 83 eb 08 74 40 48 8d 7b 18 48 89 f8 48 c1 e8 03 80 3c 10 00 0f 85 26 2d 00 00 48 8b 43 18 <48> 39 c5 0f 84 b4 f5 ff ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 80 3c RSP: 0018:ffffc90000007bc0 EFLAGS: 00000046 RAX: 56472f538d8cb3e8 RBX: ffffffff8f308cc0 RCX: 000000000000ad4e RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8f308cd8 RBP: 56472f538d8cb3e8 R08: 0000000000000000 R09: ffffffff8ffbf94f R10: fffffbfff1ff7f29 R11: 0000000000000001 R12: ffff888017bcc4d8 R13: ffff888017bcba00 R14: ffffffff8d93ff28 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcade8a960 CR3: 0000000072b87000 CR4: 0000000000350ef0 Call Trace: lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 tick_do_update_jiffies64 kernel/time/tick-sched.c:91 [inline] tick_sched_do_timer kernel/time/tick-sched.c:197 [inline] tick_sched_timer+0x217/0x2d0 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 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 bc 46 00 5d be 03 00 00 00 e9 06 46 66 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 29 f8 89 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc90000cf7418 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888017bcba00 RSI: ffffffff815fa4c1 RDI: 0000000000000003 RBP: ffffc90000cf7458 R08: 0000000000000000 R09: ffffffff8ffbfa3f R10: ffffffff815fa4b7 R11: 0000000000000000 R12: 000000000000003e R13: ffff888010e2d700 R14: 0000000000000200 R15: ffffc90000cf7578 console_trylock_spinning kernel/printk/printk.c:1885 [inline] vprintk_emit+0x377/0x4f0 kernel/printk/printk.c:2244 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:630 hid_open_report+0x37f/0x650 drivers/hid/hid-core.c:1260 hid_parse include/linux/hid.h:1081 [inline] hid_generic_probe+0x4a/0x90 drivers/hid/hid-generic.c:63 hid_device_probe+0x2bd/0x3f0 drivers/hid/hid-core.c:2380 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __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+0xc17/0x1ee0 drivers/base/core.c:3405 hid_add_device+0x344/0x9d0 drivers/hid/hid-core.c:2530 uhid_device_add_worker+0x36/0x60 drivers/hid/uhid.c:73 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 89 e9 mov %rbp,%rcx 3: 48 8b 6c 24 08 mov 0x8(%rsp),%rbp 8: eb 06 jmp 0x10 a: 48 83 eb 08 sub $0x8,%rbx e: 74 40 je 0x50 10: 48 8d 7b 18 lea 0x18(%rbx),%rdi 14: 48 89 f8 mov %rdi,%rax 17: 48 c1 e8 03 shr $0x3,%rax 1b: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 1f: 0f 85 26 2d 00 00 jne 0x2d4b 25: 48 8b 43 18 mov 0x18(%rbx),%rax * 29: 48 39 c5 cmp %rax,%rbp <-- trapping instruction 2c: 0f 84 b4 f5 ff ff je 0xfffff5e6 32: 48 8d 7b 08 lea 0x8(%rbx),%rdi 36: 48 89 f8 mov %rdi,%rax 39: 48 c1 e8 03 shr $0x3,%rax 3d: 80 .byte 0x80 3e: 3c .byte 0x3c