linux-kernel - [syzbot] [usb?] [input?] WARNING in __input_unregister

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Message-ID: <00000000000062e3bd06125f4a28@google.com>
Date: Tue, 27 Feb 2024 08:12:19 -0800
From: syzbot <syzbot+b03b0fc32e288051502d@...kaller.appspotmail.com>
To: gregkh@...uxfoundation.org, linux-input@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, rafael@...nel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [usb?] [input?] WARNING in __input_unregister_device

Hello,

syzbot found the following issue on:

HEAD commit:    9abbc24128bc Merge branch 'for-next/core' into for-kernelci
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=1432aac4180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=af5c6c699e57bbb3
dashboard link: https://syzkaller.appspot.com/bug?extid=b03b0fc32e288051502d
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=147aa106180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=150f8e22180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ce13ec3ed5ad/disk-9abbc241.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/256cbd314121/vmlinux-9abbc241.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0af86fb52109/Image-9abbc241.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b03b0fc32e288051502d@...kaller.appspotmail.com

microsoft 0003:045E:07DA.0009: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0
usb 1-1: USB disconnect, device number 10
------------[ cut here ]------------
add_uevent_var: buffer size too small
WARNING: CPU: 1 PID: 1394 at lib/kobject_uevent.c:671 add_uevent_var+0x278/0x3c0
Modules linked in:
CPU: 1 PID: 1394 Comm: kworker/1:2 Tainted: G    B              6.8.0-rc5-syzkaller-g9abbc24128bc #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 : ffff800098486c80
x29: ffff800098486da0 x28: 000000000000000c x27: ffff700013090d9c
x26: dfff800000000000 x25: ffff0000c8e02a10 x24: 000000000000000c
x23: 00000000000007f4 x22: 000000000000000c x21: ffff0000c8e02218
x20: ffff0000c8e02a1c x19: ffff0000c8e02000 x18: 1fffe00036804796
x17: 0000000000000000 x16: ffff80008ad5bbdc x15: 0000000000000001
x14: 1fffe00036804802 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000002 x10: 0000000000ff0100 x9 : c77e75592b5e9e00
x8 : c77e75592b5e9e00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800098486578 x4 : ffff80008ed715e0 x3 : ffff8000805b98b4
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: 71432
hardirqs last  enabled at (71431): [<ffff80008ae4d56c>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (71431): [<ffff80008ae4d56c>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (71432): [<ffff80008ae372c4>] __schedule+0x2bc/0x24b4 kernel/sched/core.c:6625
softirqs last  enabled at (42430): [<ffff80008002189c>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (42430): [<ffff80008002189c>] __do_softirq+0xac8/0xce4 kernel/softirq.c:582
softirqs last disabled at (42421): [<ffff80008002ab48>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
---[ 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 11
------------[ cut here ]------------
add_uevent_var: buffer size too small
WARNING: CPU: 1 PID: 1394 at lib/kobject_uevent.c:671 add_uevent_var+0x278/0x3c0
Modules linked in:
CPU: 1 PID: 1394 Comm: kworker/1:2 Tainted: G    B   W          6.8.0-rc5-syzkaller-g9abbc24128bc #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 : ffff800098486c80
x29: ffff800098486da0 x28: 000000000000000c x27: ffff700013090d9c
x26: dfff800000000000 x25: ffff0001ffb5ea10 x24: 000000000000000c
x23: 00000000000007f4 x22: 000000000000000c x21: ffff0001ffb5e218
x20: ffff0001ffb5ea1c x19: ffff0001ffb5e000 x18: 1fffe00036804796
x17: 0000000000000000 x16: ffff80008ad5bbdc x15: 0000000000000001
x14: 1fffe00036804802 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000002 x10: 0000000000ff0100 x9 : c77e75592b5e9e00
x8 : c77e75592b5e9e00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800098486578 x4 : ffff80008ed715e0 x3 : ffff8000805b98b4
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: 71432
hardirqs last  enabled at (71431): [<ffff80008ae4d56c>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (71431): [<ffff80008ae4d56c>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (71432): [<ffff80008ae372c4>] __schedule+0x2bc/0x24b4 kernel/sched/core.c:6625
softirqs last  enabled at (42430): [<ffff80008002189c>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (42430): [<ffff80008002189c>] __do_softirq+0xac8/0xce4 kernel/softirq.c:582
softirqs last disabled at (42421): [<ffff80008002ab48>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---
usb 1-1: new high-speed USB device number 12 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.000B: unknown main item tag 0x0
microsoft 0003:045E:07DA.000B: unknown main item tag 0x0
microsoft 0003:045E:07DA.000B: unknown main item tag 0x0
microsoft 0003:045E:07DA.000B: 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.000B/input/input12
microsoft 0003:045E:07DA.000B: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0


---
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If the report is already addressed, let syzbot know by replying with:
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