watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [udevd:17746] Modules linked in: irq event stamp: 824384 hardirqs last enabled at (824383): [] kvm_wait arch/x86/kernel/kvm.c:1060 [inline] hardirqs last enabled at (824383): [] kvm_wait+0x131/0x180 arch/x86/kernel/kvm.c:1042 hardirqs last disabled at (824384): [] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (824380): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (824380): [] handle_softirqs+0x5a6/0x8e0 kernel/softirq.c:582 softirqs last disabled at (824375): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (824375): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (824375): [] __irq_exit_rcu kernel/softirq.c:637 [inline] softirqs last disabled at (824375): [] irq_exit_rcu+0xac/0x110 kernel/softirq.c:649 CPU: 1 UID: 0 PID: 17746 Comm: udevd Not tainted 6.10.0-syzkaller-g1722389b0d86 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:kvm_wait+0x146/0x180 arch/x86/kernel/kvm.c:1064 Code: 5b 5d 41 5c 41 5d e9 49 a5 3e 00 e8 44 a5 3e 00 e8 1f e6 45 00 66 90 e8 38 a5 3e 00 0f 00 2d 91 e1 10 06 e8 2c a5 3e 00 fb f4 <5b> 5d 41 5c 41 5d e9 1f a5 3e 00 e8 1a a5 3e 00 e8 25 e4 45 00 e9 RSP: 0018:ffffc900015bf6e8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 1ffffffff1aaddd1 RDX: ffff888139c79d00 RSI: ffffffff8114b514 RDI: ffffffff87465d80 RBP: ffffffff88eb2ea0 R08: 0000000000000001 R09: fffffbfff1aad1d5 R10: ffffffff8d568eaf R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000003 R14: ffff8881f633e480 R15: fffffbfff11d65d4 FS: 00007f4dd214bc80(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f964a9f2f80 CR3: 000000011e084000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:596 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline] __pv_queued_spin_lock_slowpath+0x4de/0xcc0 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x210/0x2c0 kernel/locking/spinlock_debug.c:116 spin_lock include/linux/spinlock.h:351 [inline] kernfs_put.part.0+0x130/0x3a0 fs/kernfs/dir.c:574 kernfs_put+0x47/0x50 fs/kernfs/dir.c:557 evict+0x2ed/0x6c0 fs/inode.c:669 iput_final fs/inode.c:1803 [inline] iput.part.0+0x5a8/0x7f0 fs/inode.c:1829 iput+0x5c/0x80 fs/inode.c:1819 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:407 __dentry_kill+0x1d0/0x600 fs/dcache.c:610 dput.part.0+0x4b1/0x9b0 fs/dcache.c:852 dput+0x1f/0x30 fs/dcache.c:842 lookup_fast+0x27f/0x540 fs/namei.c:1684 open_last_lookups fs/namei.c:3615 [inline] path_openat+0x3c8/0x2d20 fs/namei.c:3883 do_filp_open+0x1dc/0x430 fs/namei.c:3913 do_sys_openat2+0x17a/0x1e0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_openat fs/open.c:1447 [inline] __se_sys_openat fs/open.c:1442 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1442 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4dd22769a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffe1f325370 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4dd22769a4 RDX: 0000000000080000 RSI: 0000557254aedfc0 RDI: 00000000ffffff9c RBP: 0000557254aedfc0 R08: 0000000000000001 R09: 87e366f53a964be3 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 00007ffe1f335af8 R14: 00007ffe1f336148 R15: 0000557219147a04 Sending NMI from CPU 1 to CPUs 0: yealink 1-1:36.0: urb_ctl_callback - urb status -71 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-syzkaller-g1722389b0d86 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x60 kernel/kcov.c:203 Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 34 6a b0 7e 65 8b 05 35 6a b0 7e a9 00 01 ff 00 <48> 8b 34 24 74 0f f6 c4 01 74 35 8b 82 54 15 00 00 85 c0 74 2b 8b RSP: 0018:ffffc90000004e68 EFLAGS: 00000006 RAX: 0000000000010307 RBX: 0000000000000010 RCX: ffffffff86dac610 RDX: ffff888101698000 RSI: 0000000000000012 RDI: 0000000000000001 RBP: ffffc90000005121 R08: 0000000000000001 R09: 0000000000000012 R10: 0000000000000009 R11: 00000000006af8f0 R12: ffffffff8728bc65 R13: 0000000000000004 R14: ffffc90000004f58 R15: 0000000000000009 FS: 0000000000000000(0000) GS:ffff8881f6200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001118d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x974/0x1880 lib/vsprintf.c:2857 sprintf+0xcd/0x110 lib/vsprintf.c:3028 print_time kernel/printk/printk.c:1330 [inline] info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1356 record_print_text+0x141/0x400 kernel/printk/printk.c:1405 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2910 console_emit_next_record kernel/printk/printk.c:2950 [inline] console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:3049 console_unlock+0xae/0x290 kernel/printk/printk.c:3118 vprintk_emit kernel/printk/printk.c:2348 [inline] vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303 dev_vprintk_emit drivers/base/core.c:4909 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4920 __dev_printk+0xf5/0x270 drivers/base/core.c:4932 _dev_err+0xe5/0x120 drivers/base/core.c:4975 urb_ctl_callback+0x1eb/0x2f0 drivers/input/misc/yealink.c:456 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x13/0x60 kernel/kcov.c:207 Code: 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 34 6a b0 7e 65 8b 05 35 6a b0 7e 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 54 15 00 00 RSP: 0018:ffffc90000005d28 EFLAGS: 00000202 RAX: 0000000000000306 RBX: ffffffff8a848d44 RCX: ffffffff81155344 RDX: ffff888101698000 RSI: ffffffff87001489 RDI: 0000000000000006 RBP: ffffffff8a848d44 R08: 0000000000000006 R09: ffffffff87001489 R10: ffffffff87001482 R11: 0000000000000000 R12: ffffffff87001489 R13: ffffffff87001482 R14: dffffc0000000000 R15: ffffffff8a848d44 __orc_find+0x63/0x130 arch/x86/kernel/unwind_orc.c:104 orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object+0xf7/0x160 mm/kasan/common.c:240 __kasan_slab_free+0x14/0x30 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2252 [inline] slab_free mm/slub.c:4473 [inline] kmem_cache_free+0x110/0x380 mm/slub.c:4548 skb_kfree_head net/core/skbuff.c:1082 [inline] skb_kfree_head net/core/skbuff.c:1079 [inline] skb_free_head+0x18a/0x1d0 net/core/skbuff.c:1096 skb_release_data+0x772/0x920 net/core/skbuff.c:1123 skb_release_all net/core/skbuff.c:1188 [inline] __kfree_skb net/core/skbuff.c:1202 [inline] sk_skb_reason_drop+0x133/0x210 net/core/skbuff.c:1240 kfree_skb_reason include/linux/skbuff.h:1260 [inline] dev_kfree_skb_any_reason net/core/dev.c:3201 [inline] dev_kfree_skb_any_reason+0x74/0x80 net/core/dev.c:3196 dev_consume_skb_any include/linux/netdevice.h:3871 [inline] napi_consume_skb+0x1e0/0x2a0 net/core/skbuff.c:1490 __free_old_xmit+0x186/0x5e0 drivers/net/virtio_net.c:561 free_old_xmit+0x9b/0x120 drivers/net/virtio_net.c:1007 start_xmit+0x1077/0x1e40 drivers/net/virtio_net.c:3036 __netdev_start_xmit include/linux/netdevice.h:4913 [inline] netdev_start_xmit include/linux/netdevice.h:4922 [inline] xmit_one net/core/dev.c:3580 [inline] dev_hard_start_xmit+0x143/0x790 net/core/dev.c:3596 sch_direct_xmit+0x18e/0x840 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3809 [inline] __dev_queue_xmit+0x138d/0x4300 net/core/dev.c:4389 dev_queue_xmit include/linux/netdevice.h:3105 [inline] neigh_hh_output include/net/neighbour.h:526 [inline] neigh_output include/net/neighbour.h:540 [inline] ip_finish_output2+0x1736/0x2520 net/ipv4/ip_output.c:235 __ip_finish_output.part.0+0x1bf/0x360 net/ipv4/ip_output.c:313 __ip_finish_output include/net/dst.h:450 [inline] ip_finish_output net/ipv4/ip_output.c:323 [inline] NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x2ae/0xde0 net/ipv4/ip_output.c:433 dst_output include/net/dst.h:450 [inline] ip_local_out+0x33e/0x4a0 net/ipv4/ip_output.c:129 __ip_queue_xmit+0x762/0x1950 net/ipv4/ip_output.c:535 __tcp_transmit_skb+0x2a4c/0x3c00 net/ipv4/tcp_output.c:1466 __tcp_send_ack.part.0+0x390/0x720 net/ipv4/tcp_output.c:4268 __tcp_send_ack net/ipv4/tcp_output.c:4274 [inline] tcp_send_ack+0x82/0xa0 net/ipv4/tcp_output.c:4274 __tcp_ack_snd_check+0x188/0xc30 net/ipv4/tcp_input.c:5736 tcp_ack_snd_check net/ipv4/tcp_input.c:5782 [inline] tcp_ack_snd_check net/ipv4/tcp_input.c:5776 [inline] tcp_rcv_established+0x99c/0x21b0 net/ipv4/tcp_input.c:6228 tcp_v4_do_rcv+0x5dc/0xaa0 net/ipv4/tcp_ipv4.c:1909 tcp_v4_rcv+0x33ad/0x4430 net/ipv4/tcp_ipv4.c:2344 ip_protocol_deliver_rcu+0xba/0x4e0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x329/0x580 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] NF_HOOK include/linux/netfilter.h:308 [inline] ip_local_deliver+0x1bf/0x560 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_sublist_rcv_finish+0x2c1/0x620 net/ipv4/ip_input.c:580 ip_list_rcv_finish.constprop.0+0x480/0x630 net/ipv4/ip_input.c:631 ip_sublist_rcv net/ipv4/ip_input.c:639 [inline] ip_list_rcv+0x339/0x450 net/ipv4/ip_input.c:674 __netif_receive_skb_list_ptype net/core/dev.c:5703 [inline] __netif_receive_skb_list_core+0x72e/0x950 net/core/dev.c:5741 __netif_receive_skb_list net/core/dev.c:5803 [inline] netif_receive_skb_list_internal+0x753/0xda0 net/core/dev.c:5895 gro_normal_list include/net/gro.h:515 [inline] gro_normal_one include/net/gro.h:528 [inline] napi_gro_complete.constprop.0+0x5cd/0x800 net/core/gro.c:295 dev_gro_receive+0x14fb/0x2a80 net/core/gro.c:536 napi_gro_receive+0x329/0xbf0 net/core/gro.c:639 virtnet_receive_done+0xb17/0x1bd0 drivers/net/virtio_net.c:2360 receive_buf+0x4ae/0x4590 drivers/net/virtio_net.c:2404 virtnet_receive_packets drivers/net/virtio_net.c:2699 [inline] virtnet_receive drivers/net/virtio_net.c:2723 [inline] virtnet_poll+0xef7/0x28c0 drivers/net/virtio_net.c:2818 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6771 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0xa92/0x1010 net/core/dev.c:6962 handle_softirqs+0x209/0x8e0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xac/0x110 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x4c/0x60 kernel/kcov.c:213 Code: 35 8b 82 54 15 00 00 85 c0 74 2b 8b 82 30 15 00 00 83 f8 02 75 20 48 8b 8a 38 15 00 00 8b 92 34 15 00 00 48 8b 01 48 83 c0 01 <48> 39 d0 73 07 48 89 01 48 89 34 c1 c3 cc cc cc cc 0f 1f 00 90 90 RSP: 0018:ffffc9000009f358 EFLAGS: 00000216 RAX: 0000000000100000 RBX: ffff8881106f2100 RCX: ffffc9000d491000 RDX: 0000000000100000 RSI: ffffffff86d893ff RDI: 0000000000000001 RBP: 000000000000001d R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881106f2328 R13: 0000000000000000 R14: ffffc9000009f401 R15: dffffc0000000000 tag_clear lib/radix-tree.c:109 [inline] node_tag_clear+0xaf/0x290 lib/radix-tree.c:1002 idr_alloc_u32+0x20b/0x2f0 lib/idr.c:53 idr_alloc_cyclic+0x10c/0x230 lib/idr.c:125 __kernfs_new_node+0x11b/0x890 fs/kernfs/dir.c:630 kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700 __kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:307 sysfs_merge_group+0x1b1/0x340 fs/sysfs/group.c:373 dpm_sysfs_add+0x237/0x280 drivers/base/power/sysfs.c:707 device_add+0x9a8/0x1a70 drivers/base/core.c:3639 usb_create_ep_devs+0x160/0x2b0 drivers/usb/core/endpoint.c:169 usb_new_device+0x104a/0x1a10 drivers/usb/core/hub.c:2681 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2e66/0x4f50 drivers/usb/core/hub.c:5903 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244