hso 6-1:0.0: Can't find BULK IN endpoint ------------[ cut here ]------------ WARNING: CPU: 1 PID: 32 at net/core/dev.c:10972 unregister_netdevice_many+0x207/0x1740 net/core/dev.c:10972 Modules linked in: CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:unregister_netdevice_many+0x207/0x1740 net/core/dev.c:10972 Code: 05 00 00 31 ff 44 89 fe e8 06 8d 87 fc 45 84 ff 0f 85 49 ff ff ff e8 58 86 87 fc 0f 1f 44 00 00 e8 4e 86 87 fc e8 49 86 87 fc <0f> 0b 4c 89 ef e8 5f d9 45 fd 31 ff 41 89 c5 89 c6 e8 d3 8c 87 fc RSP: 0018:ffffc900001d6f30 EFLAGS: 00010216 RAX: 000000000002b4a7 RBX: ffff88811edc0000 RCX: ffffc9000fbb4000 RDX: 0000000000040000 RSI: ffffffff84b98bd7 RDI: 0000000000000003 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff84b98bba R11: 0000000000000000 R12: ffffc900001d7000 R13: ffff88811edc0060 R14: ffffc900001d6fa0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055872e467928 CR3: 000000013b805000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unregister_netdevice_queue+0x2dd/0x3c0 net/core/dev.c:10940 unregister_netdevice include/linux/netdevice.h:2969 [inline] unregister_netdev+0x18/0x20 net/core/dev.c:11065 hso_free_net_device+0x110/0x3b0 drivers/net/usb/hso.c:2368 hso_create_net_device+0x79c/0xa80 drivers/net/usb/hso.c:2555 hso_probe+0x28c/0x1de0 drivers/net/usb/hso.c:2935 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 really_probe+0x291/0xf60 drivers/base/dd.c:576 driver_probe_device+0x298/0x410 drivers/base/dd.c:763 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x4b0 drivers/base/dd.c:938 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xbe0/0x2100 drivers/base/core.c:3320 usb_set_configuration+0x113f/0x1910 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293 really_probe+0x291/0xf60 drivers/base/dd.c:576 driver_probe_device+0x298/0x410 drivers/base/dd.c:763 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x4b0 drivers/base/dd.c:938 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xbe0/0x2100 drivers/base/core.c:3320 usb_new_device.cold+0x721/0x1058 drivers/usb/core/hub.c:2556 hub_port_connect drivers/usb/core/hub.c:5276 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1580 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x38c/0x460 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294