usb 5-1: USB disconnect, device number 52 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 CPU: 0 PID: 2722 Comm: kworker/0:3 Not tainted 5.2.0-rc6+ #13 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:device_del+0x7a/0xb80 drivers/base/core.c:2229 Code: c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 80 00 00 00 31 c0 e8 d1 9d d5 fe 48 8d 7b 40 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 79 0a 00 00 48 8b 43 40 4c 8d a3 80 00 00 00 31 RSP: 0018:ffff8881af2af7d0 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffffc9000ebdd000 RDX: 0000000000003e6b RSI: ffffffff82673ddf RDI: 0000000000000040 RBP: dffffc0000000000 R08: ffff8881af263000 R09: ffffed103a222706 R10: ffffed103a222705 R11: ffff8881d111382f R12: ffff8881d91cc4a8 R13: ffff8881d1113760 R14: ffff8881d91cc430 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002000 CR3: 00000001ca410000 CR4: 00000000001406f0 Call Trace: device_unregister+0x11/0x30 drivers/base/core.c:2306 hdm_disconnect+0xdf/0x200 drivers/staging/most/usb/usb.c:1208 usb_unbind_interface+0x1bd/0x8a0 drivers/usb/core/driver.c:423 __device_release_driver drivers/base/dd.c:1081 [inline] device_release_driver_internal+0x404/0x4c0 drivers/base/dd.c:1112 bus_remove_device+0x2dc/0x4a0 drivers/base/bus.c:556 device_del+0x460/0xb80 drivers/base/core.c:2274 usb_disable_device+0x211/0x690 drivers/usb/core/message.c:1237 usb_disconnect+0x284/0x830 drivers/usb/core/hub.c:2197 hub_port_connect drivers/usb/core/hub.c:4940 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x1409/0x3590 drivers/usb/core/hub.c:5432 process_one_work+0x905/0x1570 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x30b/0x410 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 5a5ef47808ff8a9f ]--- RIP: 0010:device_del+0x7a/0xb80 drivers/base/core.c:2229 Code: c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 80 00 00 00 31 c0 e8 d1 9d d5 fe 48 8d 7b 40 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 79 0a 00 00 48 8b 43 40 4c 8d a3 80 00 00 00 31 RSP: 0018:ffff8881af2af7d0 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffffc9000ebdd000 RDX: 0000000000003e6b RSI: ffffffff82673ddf RDI: 0000000000000040 RBP: dffffc0000000000 R08: ffff8881af263000 R09: ffffed103a222706 R10: ffffed103a222705 R11: ffff8881d111382f R12: ffff8881d91cc4a8 R13: ffff8881d1113760 R14: ffff8881d91cc430 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002000 CR3: 00000001ca410000 CR4: 00000000001406f0