Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:i915_pci_probe+0x58/0x470 drivers/gpu/drm/i915/i915_pci.c:961
Code: 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 da fe 96 fc 4d 8b 3f 49 8d 5f 1c 4d 8d 6f 23 49 89 dc 49 c1 ec 03 <43> 0f b6 04 34 84 c0 0f 85 be 02 00 00 4c 89 e8 48 c1 e8 03 42 0f
RSP: 0000:ffffc9000f82f970 EFLAGS: 00010207
RAX: 1ffffffff189d1cb RBX: 000000000000001c RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000000bf7 RDI: 0000000000000bf8
RBP: ffff88801d262000 R08: ffffffff9057c237 R09: 1ffffffff20af846
R10: dffffc0000000000 R11: ffffffff859f5640 R12: 0000000000000003
R13: 0000000000000023 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007faf334d26c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa429cad210 CR3: 000000001fc58000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 local_pci_probe drivers/pci/pci-driver.c:332 [inline]
 pci_call_probe drivers/pci/pci-driver.c:394 [inline]
 __pci_device_probe drivers/pci/pci-driver.c:455 [inline]
 pci_device_probe+0x431/0xc90 drivers/pci/pci-driver.c:489
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1203
 bind_store+0x1d0/0x220 drivers/base/bus.c:267
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf3259e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faf334d1fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007faf32826090 RCX: 00007faf3259e019
RDX: 000000000000000d RSI: 0000200000000180 RDI: 0000000000000005
RBP: 00007faf3263500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faf32826128 R14: 00007faf32826090 R15: 00007ffeeece4408
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:i915_pci_probe+0x58/0x470 drivers/gpu/drm/i915/i915_pci.c:961
Code: 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 da fe 96 fc 4d 8b 3f 49 8d 5f 1c 4d 8d 6f 23 49 89 dc 49 c1 ec 03 <43> 0f b6 04 34 84 c0 0f 85 be 02 00 00 4c 89 e8 48 c1 e8 03 42 0f
RSP: 0000:ffffc9000f82f970 EFLAGS: 00010207
RAX: 1ffffffff189d1cb RBX: 000000000000001c RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000000bf7 RDI: 0000000000000bf8
RBP: ffff88801d262000 R08: ffffffff9057c237 R09: 1ffffffff20af846
R10: dffffc0000000000 R11: ffffffff859f5640 R12: 0000000000000003
R13: 0000000000000023 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007faf334d26c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1b9360e9c CR3: 000000001fc58000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	7b 18                	jnp    0x1a
   2:	4c 89 f8             	mov    %r15,%rax
   5:	48 c1 e8 03          	shr    $0x3,%rax
   9:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
   e:	74 08                	je     0x18
  10:	4c 89 ff             	mov    %r15,%rdi
  13:	e8 da fe 96 fc       	call   0xfc96fef2
  18:	4d 8b 3f             	mov    (%r15),%r15
  1b:	49 8d 5f 1c          	lea    0x1c(%r15),%rbx
  1f:	4d 8d 6f 23          	lea    0x23(%r15),%r13
  23:	49 89 dc             	mov    %rbx,%r12
  26:	49 c1 ec 03          	shr    $0x3,%r12
* 2a:	43 0f b6 04 34       	movzbl (%r12,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 be 02 00 00    	jne    0x2f5
  37:	4c 89 e8             	mov    %r13,%rax
  3a:	48 c1 e8 03          	shr    $0x3,%rax
  3e:	42                   	rex.X
  3f:	0f                   	.byte 0xf