divide error: 0000 [#1] SMP KASAN CPU: 0 PID: 2835 Comm: kworker/0:5 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:usbnet_update_max_qlen drivers/net/usb/usbnet.c:344 [inline] RIP: 0010:usbnet_update_max_qlen+0x231/0x370 drivers/net/usb/usbnet.c:338 Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 46 01 00 00 48 8d bb f4 00 00 00 31 d2 b8 c8 63 01 00 48 89 f9 <48> f7 b3 a8 01 00 00 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 0f RSP: 0018:ffff8881ca9b7010 EFLAGS: 00010246 RAX: 00000000000163c8 RBX: ffff8881d602cec0 RCX: ffff8881d602cfb4 RDX: 0000000000000000 RSI: ffffffff8344ecde RDI: ffff8881d602cfb4 RBP: 0000000000000003 R08: ffff8881ad01e000 R09: ffffed103ac0588a R10: ffffed103ac05889 R11: ffff8881d602c44f R12: 0000000000000000 R13: ffff8881d602d038 R14: ffff8881d602cec0 R15: ffff8881c8f46500 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff098976000 CR3: 00000001d220b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cdc_ncm_update_rxtx_max+0x8e9/0xef0 drivers/net/usb/cdc_ncm.c:440 cdc_ncm_setup drivers/net/usb/cdc_ncm.c:667 [inline] cdc_ncm_bind_common+0x1005/0x2570 drivers/net/usb/cdc_ncm.c:924 cdc_ncm_bind+0x7c/0x1c0 drivers/net/usb/cdc_ncm.c:1038 usbnet_probe+0xb43/0x23cf drivers/net/usb/usbnet.c:1722 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2165 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2165 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536 hub_port_connect drivers/usb/core/hub.c:5098 [inline] hub_port_connect_change drivers/usb/core/hub.c:5213 [inline] port_event drivers/usb/core/hub.c:5359 [inline] hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 process_scheduled_works kernel/workqueue.c:2331 [inline] worker_thread+0x7ab/0xe20 kernel/workqueue.c:2417 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 8b0b7af383f7c2a1 ]--- RIP: 0010:usbnet_update_max_qlen drivers/net/usb/usbnet.c:344 [inline] RIP: 0010:usbnet_update_max_qlen+0x231/0x370 drivers/net/usb/usbnet.c:338 Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 46 01 00 00 48 8d bb f4 00 00 00 31 d2 b8 c8 63 01 00 48 89 f9 <48> f7 b3 a8 01 00 00 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 0f RSP: 0018:ffff8881ca9b7010 EFLAGS: 00010246 RAX: 00000000000163c8 RBX: ffff8881d602cec0 RCX: ffff8881d602cfb4 RDX: 0000000000000000 RSI: ffffffff8344ecde RDI: ffff8881d602cfb4 RBP: 0000000000000003 R08: ffff8881ad01e000 R09: ffffed103ac0588a R10: ffffed103ac05889 R11: ffff8881d602c44f R12: 0000000000000000 R13: ffff8881d602d038 R14: ffff8881d602cec0 R15: ffff8881c8f46500 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff098976000 CR3: 00000001d220b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400