usb 2-1: 0:2 : does not exist
general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 10073 Comm: kworker/0:6 Not tainted 5.12.0-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:usb_audio_probe+0x86b/0x2930 sound/usb/card.c:833
Code: 41 80 7c 24 14 00 74 0c 48 8b 34 24 48 89 df e8 4b b8 05 00 49 8d 7c 24 12 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 52
RSP: 0018:ffffc9000a517140 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888019bace88 RCX: 1ffff920014a2df3
RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000012
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8bcc5c67
R10: fffffbfff1798b8c R11: 0000000000000001 R12: 0000000000000000
R13: ffffed10033759e4 R14: ffff888019bacf20 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055db96de81b8 CR3: 00000000103cd000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 really_probe+0x1fd/0xc60 drivers/base/dd.c:554
 driver_probe_device+0x1ed/0x380 drivers/base/dd.c:740
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x400 drivers/base/dd.c:914
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9eb/0x1ad0 drivers/base/core.c:3242
 usb_set_configuration+0x9fc/0x1750 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
 usb_probe_device+0x98/0x240 drivers/usb/core/driver.c:293
 really_probe+0x1fd/0xc60 drivers/base/dd.c:554
 driver_probe_device+0x1ed/0x380 drivers/base/dd.c:740
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x400 drivers/base/dd.c:914
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9eb/0x1ad0 drivers/base/core.c:3242
 usb_new_device.cold+0x69a/0xee1 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x10a3/0x36b0 drivers/usb/core/hub.c:5591
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace df3f32620ea5c380 ]---
RIP: 0010:usb_audio_probe+0x86b/0x2930 sound/usb/card.c:833
Code: 41 80 7c 24 14 00 74 0c 48 8b 34 24 48 89 df e8 4b b8 05 00 49 8d 7c 24 12 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 52
RSP: 0018:ffffc9000a517140 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888019bace88 RCX: 1ffff920014a2df3
RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000012
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8bcc5c67
R10: fffffbfff1798b8c R11: 0000000000000001 R12: 0000000000000000
R13: ffffed10033759e4 R14: ffff888019bacf20 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005414a8 CR3: 000000001043e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400