firmware_class: fw_set_page_data: fw-emi26/loader.fw fw_priv=ffff888030eb3c00 data=0000000000000000 size=0
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5781 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:ihex_binrec_size include/linux/ihex.h:26 [inline]
RIP: 0010:__ihex_next_binrec include/linux/ihex.h:35 [inline]
RIP: 0010:ihex_validate_fw include/linux/ihex.h:54 [inline]
RIP: 0010:request_ihex_firmware include/linux/ihex.h:74 [inline]
RIP: 0010:emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline]
RIP: 0010:emi26_probe+0x283/0x1690 drivers/usb/misc/emi26.c:232
Code: ff 89 de e8 bf 6a 9a 00 85 db 0f 84 d9 01 00 00 e8 62 66 9a 00 48 bb 00 00 00 00 00 fc ff df 49 8d 7e 04 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 75 47 49 8d 7e 05 48 89 f8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc9000429eca0 EFLAGS: 00010257
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9001a5ae000 RSI: 0000000000011a94 RDI: 0000000000000004
RBP: ffffc9000429edd0 R08: ffffc9000429e6c7 R09: 1ffff92000853cd8
R10: dffffc0000000000 R11: fffff52000853cd9 R12: fffffffffffffffa
R13: 1fffffffffffffff R14: 0000000000000000 R15: 1fffffffffffffff
FS:  0000000000000000(0000) GS:ffff88812340a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3414e2 CR3: 0000000052433000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 usb_probe_interface+0x751/0xe00 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1027
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2bd/0x430 drivers/base/dd.c:1131
 device_initial_probe+0x9c/0x100 drivers/base/dd.c:1190
 __bus_probe_device+0x126/0x220 drivers/base/bus.c:614
 device_add+0x7d7/0xb80 drivers/base/core.c:3778
 usb_set_configuration+0x1bb5/0x2260 drivers/usb/core/message.c:2280
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1027
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2bd/0x430 drivers/base/dd.c:1131
 device_initial_probe+0x9c/0x100 drivers/base/dd.c:1190
 __bus_probe_device+0x126/0x220 drivers/base/bus.c:614
 device_add+0x7d7/0xb80 drivers/base/core.c:3778
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2713
 hub_port_connect drivers/usb/core/hub.c:5585 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5971
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	89 de                	mov    %ebx,%esi
   2:	e8 bf 6a 9a 00       	call   0x9a6ac6
   7:	85 db                	test   %ebx,%ebx
   9:	0f 84 d9 01 00 00    	je     0x1e8
   f:	e8 62 66 9a 00       	call   0x9a6676
  14:	48 bb 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbx
  1b:	fc ff df
  1e:	49 8d 7e 04          	lea    0x4(%r14),%rdi
  22:	48 89 f8             	mov    %rdi,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax <-- trapping instruction
  2d:	84 c0                	test   %al,%al
  2f:	75 47                	jne    0x78
  31:	49 8d 7e 05          	lea    0x5(%r14),%rdi
  35:	48 89 f8             	mov    %rdi,%rax
  38:	48 c1 e8 03          	shr    $0x3,%rax
  3c:	0f                   	.byte 0xf
  3d:	b6 04                	mov    $0x4,%dh