usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 usb 2-1: New USB device found, idVendor=05ac, idProduct=0265, bcdDevice= 0.40 usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 2-1: config 0 descriptor?? usb 2-1: USB disconnect, device number 5 general protection fault, probably for non-canonical address 0xdffffc000000002b: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000158-0x000000000000015f] CPU: 1 PID: 4844 Comm: kworker/1:3 Not tainted 5.13.0-rc1-next-20210510-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:timer_is_static_object+0x20/0x90 kernel/time/timer.c:625 Code: 84 00 00 00 00 00 0f 1f 40 00 41 54 53 48 89 fb e8 a5 2a 11 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 83 7b 08 00 74 0c e8 7b 2a 11 00 44 RSP: 0018:ffffc9000153f338 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000150 RCX: ffffc90016581000 RDX: 000000000000002b RSI: ffffffff8163bb1b RDI: 0000000000000158 RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff908fb2eb R10: fffffbfff211f65d R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff896d9940 R14: 0000000000000150 R15: 1ffff920002a7e6c FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cb26000 CR3: 0000000069963000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_object_assert_init lib/debugobjects.c:886 [inline] debug_object_assert_init+0x1df/0x2e0 lib/debugobjects.c:861 debug_timer_assert_init kernel/time/timer.c:737 [inline] debug_assert_init kernel/time/timer.c:782 [inline] del_timer+0x6d/0x110 kernel/time/timer.c:1202 try_to_grab_pending+0x6d/0xd0 kernel/workqueue.c:1252 __cancel_work_timer+0xa6/0x570 kernel/workqueue.c:3098 magicmouse_remove+0x3a/0x50 drivers/hid/hid-magicmouse.c:782 hid_device_remove+0xbf/0x1f0 drivers/hid/hid-core.c:2316 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1181 device_release_driver_internal drivers/base/dd.c:1212 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1235 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3507 hid_remove_device drivers/hid/hid-core.c:2487 [inline] hid_destroy_device+0xe1/0x150 drivers/hid/hid-core.c:2506 usbhid_disconnect+0x9f/0xe0 drivers/hid/usbhid/hid-core.c:1436 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1181 device_release_driver_internal drivers/base/dd.c:1212 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1235 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3507 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1413 usb_disconnect.cold+0x27d/0x791 drivers/usb/core/hub.c:2219 hub_port_connect drivers/usb/core/hub.c:5127 [inline] hub_port_connect_change drivers/usb/core/hub.c:5416 [inline] port_event drivers/usb/core/hub.c:5562 [inline] hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5644 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace a9f8824743fbf656 ]--- RIP: 0010:timer_is_static_object+0x20/0x90 kernel/time/timer.c:625 Code: 84 00 00 00 00 00 0f 1f 40 00 41 54 53 48 89 fb e8 a5 2a 11 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 83 7b 08 00 74 0c e8 7b 2a 11 00 44 RSP: 0018:ffffc9000153f338 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000150 RCX: ffffc90016581000 RDX: 000000000000002b RSI: ffffffff8163bb1b RDI: 0000000000000158 RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff908fb2eb R10: fffffbfff211f65d R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff896d9940 R14: 0000000000000150 R15: 1ffff920002a7e6c FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cb26000 CR3: 0000000069963000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400