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: 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 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: 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 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: 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 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: __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 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: 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 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 ---------------- 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