usb 1-1: USB disconnect, device number 10 ------------[ cut here ]------------ add_uevent_var: buffer size too small WARNING: CPU: 1 PID: 3643 at lib/kobject_uevent.c:671 add_uevent_var+0x278/0x3c0 Modules linked in: CPU: 1 PID: 3643 Comm: kworker/1:2 Not tainted 6.8.0-rc7-syzkaller-00135-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : add_uevent_var+0x278/0x3c0 lr : add_uevent_var+0x274/0x3c0 lib/kobject_uevent.c:671 sp : ffff80009dff6c80 x29: ffff80009dff6da0 x28: 000000000000000c x27: ffff700013bfed9c x26: dfff800000000000 x25: ffff0001ffa76a10 x24: 000000000000000c x23: 00000000000007f4 x22: 000000000000000c x21: ffff0001ffa76218 x20: ffff0001ffa76a1c x19: ffff0001ffa76000 x18: ffff80009dff6160 x17: 0000000000000000 x16: ffff80008ad6b09c x15: 0000000000000001 x14: 1fffe00036804402 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000002 x10: 0000000000ff0100 x9 : 019f02ce51c7bf00 x8 : 019f02ce51c7bf00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009dff6578 x4 : ffff80008ed822c0 x3 : ffff8000805ba130 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 00000000fffffff4 Call trace: add_uevent_var+0x278/0x3c0 kobject_uevent_env+0x4f0/0x874 lib/kobject_uevent.c:588 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:642 device_del+0x6a8/0x87c drivers/base/core.c:3846 __input_unregister_device+0x454/0x5c0 drivers/input/input.c:2232 input_unregister_device+0xb0/0xfc drivers/input/input.c:2440 hidinput_disconnect+0x1fc/0x290 drivers/hid/hid-input.c:2388 hid_disconnect drivers/hid/hid-core.c:2280 [inline] hid_hw_stop+0x88/0x1cc drivers/hid/hid-core.c:2329 ms_remove+0x28/0x94 drivers/hid/hid-microsoft.c:409 hid_device_remove+0x1c8/0x2fc device_remove drivers/base/dd.c:567 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x3e4/0x6a0 drivers/base/dd.c:1295 device_release_driver+0x28/0x38 drivers/base/dd.c:1318 bus_remove_device+0x314/0x3b4 drivers/base/bus.c:574 device_del+0x480/0x87c drivers/base/core.c:3828 hid_remove_device drivers/hid/hid-core.c:2867 [inline] hid_destroy_device+0x70/0x114 drivers/hid/hid-core.c:2887 usbhid_disconnect+0xa8/0xf0 drivers/hid/usbhid/hid-core.c:1456 usb_unbind_interface+0x1a4/0x758 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:569 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x440/0x6a0 drivers/base/dd.c:1295 device_release_driver+0x28/0x38 drivers/base/dd.c:1318 bus_remove_device+0x314/0x3b4 drivers/base/bus.c:574 device_del+0x480/0x87c drivers/base/core.c:3828 usb_disable_device+0x354/0x760 drivers/usb/core/message.c:1416 usb_disconnect+0x290/0x808 drivers/usb/core/hub.c:2267 hub_port_connect drivers/usb/core/hub.c:5323 [inline] hub_port_connect_change drivers/usb/core/hub.c:5623 [inline] port_event drivers/usb/core/hub.c:5783 [inline] hub_event+0x18ec/0x435c drivers/usb/core/hub.c:5865 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 89404 hardirqs last enabled at (89403): [] __up_console_sem kernel/printk/printk.c:341 [inline] hardirqs last enabled at (89403): [] __console_unlock kernel/printk/printk.c:2706 [inline] hardirqs last enabled at (89403): [] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3038 hardirqs last disabled at (89404): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (88738): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (88738): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] softirqs last enabled at (88738): [] nsim_dev_trap_report_work+0x620/0x924 drivers/net/netdevsim/dev.c:850 softirqs last disabled at (88736): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (88736): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline] softirqs last disabled at (88736): [] nsim_dev_trap_report_work+0x59c/0x924 drivers/net/netdevsim/dev.c:850 ---[ end trace 0000000000000000 ]--- usb 1-1: new high-speed USB device number 11 using dummy_hcd usb 1-1: Using ep0 maxpacket: 16 usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? microsoft 0003:045E:07DA.000A: unknown main item tag 0x0 microsoft 0003:045E:07DA.000A: unknown main item tag 0x0 microsoft 0003:045E:07DA.000A: unknown main item tag 0x0 microsoft 0003:045E:07DA.000A: unknown main item tag 0x0 HID 045e:07da: Invalid code 65791 type 1 input: HID 045e:07da as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:045E:07DA.000A/input/input11 microsoft 0003:045E:07DA.000A: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0 usb 1-1: USB disconnect, device number 13 ------------[ cut here ]------------ add_uevent_var: buffer size too small WARNING: CPU: 1 PID: 3643 at lib/kobject_uevent.c:671 add_uevent_var+0x278/0x3c0 Modules linked in: CPU: 1 PID: 3643 Comm: kworker/1:2 Tainted: G W 6.8.0-rc7-syzkaller-00135-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : add_uevent_var+0x278/0x3c0 lr : add_uevent_var+0x274/0x3c0 lib/kobject_uevent.c:671 sp : ffff80009dff6c80 x29: ffff80009dff6da0 x28: 000000000000000c x27: ffff700013bfed9c x26: dfff800000000000 x25: ffff0001ffb26a10 x24: 000000000000000c x23: 00000000000007f4 x22: 000000000000000c x21: ffff0001ffb26218 x20: ffff0001ffb26a1c x19: ffff0001ffb26000 x18: 1fffe00036804396 x17: 0000000000000000 x16: ffff80008ad6b09c x15: 0000000000000001 x14: 1fffe00036804402 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000002 x10: 0000000000ff0100 x9 : 019f02ce51c7bf00 x8 : 019f02ce51c7bf00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009dff6578 x4 : ffff80008ed822c0 x3 : ffff8000805ba130 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 00000000fffffff4 Call trace: add_uevent_var+0x278/0x3c0 kobject_uevent_env+0x4f0/0x874 lib/kobject_uevent.c:588 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:642 device_del+0x6a8/0x87c drivers/base/core.c:3846 __input_unregister_device+0x454/0x5c0 drivers/input/input.c:2232 input_unregister_device+0xb0/0xfc drivers/input/input.c:2440 hidinput_disconnect+0x1fc/0x290 drivers/hid/hid-input.c:2388 hid_disconnect drivers/hid/hid-core.c:2280 [inline] hid_hw_stop+0x88/0x1cc drivers/hid/hid-core.c:2329 ms_remove+0x28/0x94 drivers/hid/hid-microsoft.c:409 hid_device_remove+0x1c8/0x2fc device_remove drivers/base/dd.c:567 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x3e4/0x6a0 drivers/base/dd.c:1295 device_release_driver+0x28/0x38 drivers/base/dd.c:1318 bus_remove_device+0x314/0x3b4 drivers/base/bus.c:574 device_del+0x480/0x87c drivers/base/core.c:3828 hid_remove_device drivers/hid/hid-core.c:2867 [inline] hid_destroy_device+0x70/0x114 drivers/hid/hid-core.c:2887 usbhid_disconnect+0xa8/0xf0 drivers/hid/usbhid/hid-core.c:1456 usb_unbind_interface+0x1a4/0x758 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:569 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x440/0x6a0 drivers/base/dd.c:1295 device_release_driver+0x28/0x38 drivers/base/dd.c:1318 bus_remove_device+0x314/0x3b4 drivers/base/bus.c:574 device_del+0x480/0x87c drivers/base/core.c:3828 usb_disable_device+0x354/0x760 drivers/usb/core/message.c:1416 usb_disconnect+0x290/0x808 drivers/usb/core/hub.c:2267 hub_port_connect drivers/usb/core/hub.c:5323 [inline] hub_port_connect_change drivers/usb/core/hub.c:5623 [inline] port_event drivers/usb/core/hub.c:5783 [inline] hub_event+0x18ec/0x435c drivers/usb/core/hub.c:5865 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 114406 hardirqs last enabled at (114405): [] __up_console_sem kernel/printk/printk.c:341 [inline] hardirqs last enabled at (114405): [] __console_unlock kernel/printk/printk.c:2706 [inline] hardirqs last enabled at (114405): [] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3038 hardirqs last disabled at (114406): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (113798): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (113796): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- usb 1-1: new high-speed USB device number 14 using dummy_hcd usb 1-1: Using ep0 maxpacket: 16 usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor??