usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: syz
usb 1-1: Manufacturer: syz
usb 1-1: SerialNumber: syz
usb 1-1: config 0 descriptor??
general protection fault, probably for non-canonical address 0xdffffc000000008a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000450-0x0000000000000457]
CPU: 0 PID: 3607 Comm: kworker/0:3 Not tainted 5.17.0-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:dev_fwnode drivers/base/property.c:22 [inline]
RIP: 0010:device_property_match_string+0x20/0xb0 drivers/base/property.c:224
Code: f4 ff ff ff eb e2 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 53 48 89 fb 48 81 c7 50 04 00 00 48 89 f9 48 83 ec 10 48 c1 e9 03 <80> 3c 01 00 75 49 48 8b bb 50 04 00 00 48 85 ff 74 0e 48 83 c4 10
RSP: 0018:ffffc9000246f048 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000008a
RDX: ffffffff897c2220 RSI: ffffffff897c2260 RDI: 0000000000000450
RBP: ffff88807eb01038 R08: 0000000000000001 R09: ffff88807eb011a3
R10: ffffed100fd60234 R11: 0000000000000000 R12: ffff88807eb01038
R13: 0000000000000000 R14: ffff88807eb01660 R15: ffff88807eb01664
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f031b9bc6a8 CR3: 000000001b413000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 i2c_setup_smbus_alert+0x94/0x140 drivers/i2c/i2c-core-smbus.c:710
 i2c_register_adapter+0x2d0/0x10e0 drivers/i2c/i2c-core-base.c:1482
 osif_probe+0x299/0x4a0 drivers/i2c/busses/i2c-robotfuzz-osif.c:164
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:517 [inline]
 really_probe+0x1c2/0xb60 drivers/base/dd.c:596
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
 driver_probe_device+0x44/0x110 drivers/base/dd.c:782
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:970
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa57/0x1b80 drivers/base/core.c:3405
 usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:517 [inline]
 really_probe+0x1c2/0xb60 drivers/base/dd.c:596
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
 driver_probe_device+0x44/0x110 drivers/base/dd.c:782
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:970
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa57/0x1b80 drivers/base/core.c:3405
 usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5358 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
 port_event drivers/usb/core/hub.c:5660 [inline]
 hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742
 process_one_work+0x879/0x1410 kernel/workqueue.c:2307
 worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
 kthread+0x299/0x340 kernel/kthread.c:377
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	eb e2                	jmp    0xffffffe4
   2:	0f 1f 40 00          	nopl   0x0(%rax)
   6:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   d:	fc ff df
  10:	53                   	push   %rbx
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	48 81 c7 50 04 00 00 	add    $0x450,%rdi
  1b:	48 89 f9             	mov    %rdi,%rcx
  1e:	48 83 ec 10          	sub    $0x10,%rsp
  22:	48 c1 e9 03          	shr    $0x3,%rcx
* 26:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1) <-- trapping instruction
  2a:	75 49                	jne    0x75
  2c:	48 8b bb 50 04 00 00 	mov    0x450(%rbx),%rdi
  33:	48 85 ff             	test   %rdi,%rdi
  36:	74 0e                	je     0x46
  38:	48 83 c4 10          	add    $0x10,%rsp