Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 PID: 4231 Comm: kworker/0:4 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+0x188/0x250 lib/dump_stack.c:106
 panic+0x2f8/0x850 kernel/panic.c:309
 check_panic_on_warn kernel/panic.c:229 [inline]
 __warn+0x248/0x2b0 kernel/panic.c:680
 report_bug+0x1b9/0x2e0 lib/bug.c:199
 handle_bug+0x3a/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:usb_submit_urb+0xfba/0x18d0 drivers/usb/core/urb.c:378
Code: c5 8a 44 89 ea e8 c6 d8 d6 03 e9 f3 fb ff ff e8 5c c9 96 fb c6 05 e5 22 95 07 01 48 c7 c7 20 37 c5 8a 48 89 de e8 66 f6 d2 03 <0f> 0b e9 bc f0 ff ff e8 3a c9 96 fb eb 1f e8 33 c9 96 fb 44 8b 64
RSP: 0018:ffffc9000309eda0 EFLAGS: 00010246
RAX: 69e3fc2c56245600 RBX: ffff88802ac7b100 RCX: 0000000000100000
RDX: ffffc9001468c000 RSI: 000000000000d7f0 RDI: 000000000000d7f1
RBP: 1ffff1100c4b620a R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: 0000000000000cc0
R13: 1ffff1100c4b6209 R14: ffff88802ac7b108 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+0x1c4/0x380 drivers/nfc/port100.c:990
 port100_probe+0x9ea/0xdb0 drivers/nfc/port100.c:1570
 usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x276/0xc70 drivers/base/dd.c:595
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:927
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:999
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3427
 usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x276/0xc70 drivers/base/dd.c:595
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:927
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:999
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3427
 usb_new_device+0x9f6/0x15d0 drivers/usb/core/hub.c:2632
 hub_port_connect drivers/usb/core/hub.c:5497 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x2b8d/0x5260 drivers/usb/core/hub.c:5881
 process_one_work+0x867/0xff0 kernel/workqueue.c:2310
 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..