usb 4-1: Using ep0 maxpacket: 8 usb 2-1: string descriptor 0 read error: -71 smsusb:smsusb_probe: board id=12, interface number 0 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 5362 Comm: kworker/0:4 Not tainted 5.1.0-rc5-319617-gd34f951 #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d RSP: 0018:ffff8880965af0d0 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff8880717fe600 RCX: ffffc900132c3000 RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004 RBP: ffff888093f48880 R08: ffff888091f9c980 R09: ffff8880965af130 R10: ffffed1012cb5e34 R11: ffff8880965af1a7 R12: ffff8880717ff154 R13: ffff8880717ff15c R14: 0000000000000000 R15: ffff888093f48880 FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69e6a1a000 CR3: 000000009c522000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smsusb_probe+0xd64/0xe08 drivers/media/usb/siano/smsusb.c:570 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 process_scheduled_works kernel/workqueue.c:2331 [inline] worker_thread+0x7b0/0xe20 kernel/workqueue.c:2417 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 115bd78d7ac6c9a7 ]--- RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d RSP: 0018:ffff8880965af0d0 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff8880717fe600 RCX: ffffc900132c3000 RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004 RBP: ffff888093f48880 R08: ffff888091f9c980 R09: ffff8880965af130 R10: ffffed1012cb5e34 R11: ffff8880965af1a7 R12: ffff8880717ff154 R13: ffff8880717ff15c R14: 0000000000000000 R15: ffff888093f48880 FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69e6a1a000 CR3: 000000009c522000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400