Oops: general protection fault, probably for non-canonical address 0xdffffc0000000065: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f]
CPU: 0 UID: 0 PID: 5330 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:wacom_intuos_irq+0x3318/0x33f0 drivers/hid/wacom_wac.c:1036
Code: f1 ff ff 48 8b 7c 24 10 e8 05 92 16 f9 e9 0c f1 ff ff 49 81 c6 28 03 00 00 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 0a 92 16 f9 49 8b 1e 48 b8 00 00 00
RSP: 0018:ffffc9000e0ff900 EFLAGS: 00010206
RAX: 0000000000000065 RBX: 1ffff110068ab429 RCX: dffffc0000000000
RDX: ffffffff8922c53a RSI: ffffffff900d1360 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888012904b00 R09: 0000000000000007
R10: 0000000000000011 R11: 0000000000000000 R12: ffff8880516b80ae
R13: 1ffff110068ab440 R14: 0000000000000328 R15: 1ffff1100a2d7015
FS:  00007fd60609e6c0(0000) GS:ffff88808c2c3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056245d3da630 CR3: 000000000bf8c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 wacom_wac_irq+0x102d/0x9b90 drivers/hid/wacom_wac.c:3511
 wacom_raw_event+0xa33/0xd70 drivers/hid/wacom_sys.c:182
 __hid_input_report+0x41c/0x580 drivers/hid/hid-core.c:2175
 uhid_dev_input2+0xbc/0x150 drivers/hid/uhid.c:609
 uhid_char_write+0x4a1/0xc90 drivers/hid/uhid.c:767
 vfs_write+0x296/0xba0 fs/read_write.c:685
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd60519e159
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:00007fd60609dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd605426180 RCX: 00007fd60519e159
RDX: 0000000000000010 RSI: 0000200000000300 RDI: 0000000000000005
RBP: 00007fd60523506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd605426218 R14: 00007fd605426180 R15: 00007ffc70803e48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
   5:	e8 05 92 16 f9       	call   0xf916920f
   a:	e9 0c f1 ff ff       	jmp    0xfffff11b
   f:	49 81 c6 28 03 00 00 	add    $0x328,%r14
  16:	4c 89 f0             	mov    %r14,%rax
  19:	48 c1 e8 03          	shr    $0x3,%rax
  1d:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  24:	fc ff df
* 27:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2b:	74 08                	je     0x35
  2d:	4c 89 f7             	mov    %r14,%rdi
  30:	e8 0a 92 16 f9       	call   0xf916923f
  35:	49 8b 1e             	mov    (%r14),%rbx
  38:	48                   	rex.W
  39:	b8                   	.byte 0xb8
  3a:	00 00                	add    %al,(%rax)