Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 panic+0x2ca/0x720 kernel/panic.c:340
 check_panic_on_warn kernel/panic.c:236 [inline]
 __warn+0x2e0/0x470 kernel/panic.c:681
 __report_bug lib/bug.c:199 [inline]
 report_bug+0x2be/0x4f0 lib/bug.c:219
 handle_bug+0xcf/0x120 arch/x86/kernel/traps.c:310
 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:345
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:606
RIP: 0010:usb_submit_urb+0xf15/0x17a0 drivers/usb/core/urb.c:379
Code: 6b 8b 44 89 fa e8 fb a3 1b 04 e9 74 fc ff ff e8 91 70 1d fb c6 05 2a 01 0d 08 01 48 c7 c7 20 ee 6b 8b 48 89 de e8 2b 3e e7 fa <0f> 0b e9 63 f1 ff ff e8 6f 70 1d fb eb 12 e8 68 70 1d fb 41 bc 80
RSP: 0018:ffffc900001d6d00 EFLAGS: 00010246
RAX: c835ff15677dbc00 RBX: ffff88802f884500 RCX: 0000000000100000
RDX: ffffc9001bbb5000 RSI: 000000000002585e RDI: 000000000002585f
RBP: dffffc0000000000 R08: ffff8880b8f28c53 R09: 1ffff110171e518a
R10: dffffc0000000000 R11: ffffed10171e518b R12: 0000000000000cc0
R13: 1ffff1100bb0a089 R14: ffff88802f884508 R15: dffffc0000000000
 port100_send_frame_async drivers/nfc/port100.c:783 [inline]
 port100_send_cmd_async+0x81c/0xc60 drivers/nfc/port100.c:879
 port100_send_cmd_sync drivers/nfc/port100.c:919 [inline]
 port100_set_command_type+0x1c8/0x380 drivers/nfc/port100.c:990
 port100_probe+0x9f1/0xdb0 drivers/nfc/port100.c:1570
 usb_probe_interface+0x5c2/0xaf0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x247/0xae0 drivers/base/dd.c:717
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
 __device_attach+0x2c1/0x420 drivers/base/dd.c:1109
 bus_probe_device+0x180/0x260 drivers/base/bus.c:580
 device_add+0x87c/0xc40 drivers/base/core.c:3700
 usb_set_configuration+0x1ad0/0x2150 drivers/usb/core/message.c:2265
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x12a/0x260 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x247/0xae0 drivers/base/dd.c:717
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
 __device_attach+0x2c1/0x420 drivers/base/dd.c:1109
 bus_probe_device+0x180/0x260 drivers/base/bus.c:580
 device_add+0x87c/0xc40 drivers/base/core.c:3700
 usb_new_device+0x995/0x1550 drivers/usb/core/hub.c:2660
 hub_port_connect drivers/usb/core/hub.c:5529 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5669 [inline]
 port_event drivers/usb/core/hub.c:5833 [inline]
 hub_event+0x29d5/0x4a80 drivers/usb/core/hub.c:5915
 process_one_work kernel/workqueue.c:2657 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..