rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2664 jiffies s: 84609 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.6.0-rc3-syzkaller-00044-g633b47cb009d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x70 kernel/kcov.c:206 Code: ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 fd f5 7b 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 <65> 48 8b 14 25 c0 bc 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 RSP: 0018:ffffc900001f0540 EFLAGS: 00000206 RAX: 0000000000000504 RBX: ffffc900001f0610 RCX: 0000000000000100 RDX: ffff888017265940 RSI: ffffffff813a4585 RDI: 0000000000000005 RBP: ffffc900001f09e0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: ffffc900001f0618 R13: ffffc900001f0620 R14: ffffc900001e9000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202a2030 CR3: 000000004dfcd000 CR4: 0000000000350ee0 Call Trace: on_stack arch/x86/include/asm/stacktrace.h:59 [inline] stack_access_ok+0x1c5/0x270 arch/x86/kernel/unwind_orc.c:393 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline] unwind_next_frame+0x1a98/0x2390 arch/x86/kernel/unwind_orc.c:648 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826 slab_free mm/slub.c:3809 [inline] kmem_cache_free+0xf0/0x480 mm/slub.c:3831 skb_kfree_head net/core/skbuff.c:943 [inline] skb_kfree_head net/core/skbuff.c:940 [inline] skb_free_head+0x17f/0x1b0 net/core/skbuff.c:957 skb_release_data+0x5ba/0x870 net/core/skbuff.c:987 skb_release_all net/core/skbuff.c:1053 [inline] __kfree_skb net/core/skbuff.c:1067 [inline] kfree_skb_reason+0x101/0x210 net/core/skbuff.c:1103 kfree_skb include/linux/skbuff.h:1234 [inline] lapb_state0_machine net/lapb/lapb_in.c:103 [inline] lapb_data_input+0x352/0x1b30 net/lapb/lapb_in.c:544 lapb_data_received+0x69/0x100 net/lapb/lapb_iface.c:399 lapbeth_rcv+0x422/0x6e0 drivers/net/wan/lapbether.c:141 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5523 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5637 process_backlog+0x101/0x6b0 net/core/dev.c:5965 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6527 napi_poll net/core/dev.c:6594 [inline] net_rx_action+0x956/0xe90 net/core/dev.c:6727 __do_softirq+0x218/0x965 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:console_flush_all+0x9e0/0xfb0 kernel/printk/printk.c:2972 Code: 66 60 23 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 94 a6 1c 00 48 85 db 0f 85 97 03 00 00 e8 f6 aa 1c 00 fb 48 8b 44 24 08 <48> 8b 14 24 0f b6 00 83 e2 07 38 d0 7f 08 84 c0 0f 85 08 05 00 00 RSP: 0018:ffffc900001d66a8 EFLAGS: 00000246 RAX: fffff5200003ad00 RBX: 0000000000000000 RCX: ffffc90017b49000 RDX: 0000000000040000 RSI: ffffffff816b1bca RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 205d314320202020 R12: ffffffff8d6dd300 R13: 0000000000000000 R14: ffffffff8d6dd358 R15: 0000000000000001 console_unlock+0x10c/0x260 kernel/printk/printk.c:3035 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2307 dev_vprintk_emit drivers/base/core.c:4849 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4860 __dev_printk+0xf5/0x270 drivers/base/core.c:4872 _dev_warn+0xe5/0x120 drivers/base/core.c:4916 hid_parser_main+0x2b2/0xc80 drivers/hid/hid-core.c:632 hid_open_report+0x3ee/0x7b0 drivers/hid/hid-core.c:1269 hid_parse include/linux/hid.h:1115 [inline] plantronics_probe+0x56/0x3f0 drivers/hid/hid-plantronics.c:179 __hid_device_probe drivers/hid/hid-core.c:2626 [inline] hid_device_probe+0x2e4/0x480 drivers/hid/hid-core.c:2663 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x117e/0x1aa0 drivers/base/core.c:3624 hid_add_device+0x371/0xa60 drivers/hid/hid-core.c:2809 usbhid_probe+0xd0a/0x1360 drivers/hid/usbhid/hid-core.c:1429 usb_probe_interface+0x307/0x930 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x117e/0x1aa0 drivers/base/core.c:3624 usb_set_configuration+0x10cb/0x1c40 drivers/usb/core/message.c:2207 usb_generic_driver_probe+0xca/0x130 drivers/usb/core/generic.c:238 usb_probe_device+0xda/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x117e/0x1aa0 drivers/base/core.c:3624 usb_new_device+0xd80/0x1960 drivers/usb/core/hub.c:2589 hub_port_connect drivers/usb/core/hub.c:5440 [inline] hub_port_connect_change drivers/usb/core/hub.c:5580 [inline] port_event drivers/usb/core/hub.c:5740 [inline] hub_event+0x2daf/0x4e00 drivers/usb/core/hub.c:5822 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784 kthread+0x33c/0x440 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 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4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: 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lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: 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4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4 lapbether: lapb_data_request error - 4