usb 2-1: USB disconnect, device number 75 ------------[ cut here ]------------ add_uevent_var: buffer size too small WARNING: CPU: 0 PID: 9953 at lib/kobject_uevent.c:671 add_uevent_var+0x311/0x380 lib/kobject_uevent.c:671 Modules linked in: CPU: 0 PID: 9953 Comm: kworker/0:0 Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:add_uevent_var+0x311/0x380 lib/kobject_uevent.c:671 Code: 48 c7 c7 40 df 41 86 e8 0b 07 88 03 0f 0b 41 bd f4 ff ff ff e9 55 ff ff ff e8 8b f1 32 ff 48 c7 c7 e0 df 41 86 e8 ed 06 88 03 <0f> 0b 41 bd f4 ff ff ff e9 37 ff ff ff 4c 89 ee 48 c7 c7 c0 20 97 RSP: 0018:ffffc90013b672d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881055e0000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff812abca8 RDI: fffff5200276ce4d RBP: ffffc90013b673c8 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff814ccadb R11: 0000000000000000 R12: 1ffff9200276ce5e R13: 00000000000007de R14: ffff8881055e0218 R15: 00000000000007de FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005616a8a8e248 CR3: 000000011f09f000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject_uevent_env+0xdd4/0x1650 lib/kobject_uevent.c:605 device_del+0x809/0xd60 drivers/base/core.c:3556 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2379 hidinput_disconnect+0x15e/0x3d0 drivers/hid/hid-input.c:2038 hid_disconnect+0x13f/0x1a0 drivers/hid/hid-core.c:2032 hid_hw_stop+0x12/0x70 drivers/hid/hid-core.c:2079 ms_remove+0x12/0x90 drivers/hid/hid-microsoft.c:409 hid_device_remove+0xbf/0x200 drivers/hid/hid-core.c:2316 __device_release_driver+0x3bd/0x700 drivers/base/dd.c:1203 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x502/0xd60 drivers/base/core.c:3546 hid_remove_device drivers/hid/hid-core.c:2485 [inline] hid_destroy_device+0xe1/0x150 drivers/hid/hid-core.c:2504 usbhid_disconnect+0x9f/0xe0 drivers/hid/usbhid/hid-core.c:1451 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x502/0xd60 drivers/base/core.c:3546 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2225 hub_port_connect drivers/usb/core/hub.c:5199 [inline] hub_port_connect_change drivers/usb/core/hub.c:5488 [inline] port_event drivers/usb/core/hub.c:5634 [inline] hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5716 process_one_work+0x9bf/0x1620 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3c2/0x4a0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295