WARNING: CPU: 0 PID: 3098 at drivers/usb/core/urb.c:478 usb_submit_urb+0xa17/0x13e0 drivers/usb/core/urb.c:478 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3098 Comm: kworker/0:5 Not tainted 5.8.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf6/0x16e lib/dump_stack.c:118 panic+0x2aa/0x6e1 kernel/panic.c:231 __warn.cold+0x20/0x50 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 exc_invalid_op+0x1e4/0x370 arch/x86/kernel/traps.c:235 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563 RIP: 0010:usb_submit_urb+0xa17/0x13e0 drivers/usb/core/urb.c:478 Code: 84 e7 04 00 00 e8 09 45 ca fd 4c 89 ef e8 a1 7e 12 ff 41 89 d8 44 89 e1 4c 89 f2 48 89 c6 48 c7 c7 e0 8e 5d 86 e8 4b ad 9e fd <0f> 0b e8 e2 44 ca fd 0f b6 6c 24 08 48 c7 c6 40 90 5d 86 48 89 ef RSP: 0018:ffff8881aaeeef58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff812961f3 RDI: ffffed10355ddddd RBP: 0000000000000008 R08: 0000000000000001 R09: ffff8881db22f50f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8881aa4850a0 R14: ffff8881d412cde0 R15: ffff8881ca867000 usb_start_wait_urb+0x101/0x4c0 drivers/usb/core/message.c:58 usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:254 vmk80xx_write_packet+0x1db/0x260 drivers/staging/comedi/drivers/vmk80xx.c:213 vmk80xx_reset_device drivers/staging/comedi/drivers/vmk80xx.c:226 [inline] vmk80xx_auto_attach+0x141e/0x1840 drivers/staging/comedi/drivers/vmk80xx.c:814 comedi_auto_config+0x16e/0x250 drivers/staging/comedi/drivers.c:1067 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:374 really_probe+0x291/0xc90 drivers/base/dd.c:525 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:701 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:807 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:873 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1b40 drivers/base/core.c:2680 usb_set_configuration+0xf05/0x18a0 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:241 usb_probe_device+0xd9/0x250 drivers/usb/core/driver.c:272 really_probe+0x291/0xc90 drivers/base/dd.c:525 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:701 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:807 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:873 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1b40 drivers/base/core.c:2680 usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Kernel Offset: disabled