Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:saitek_event+0x51/0x2b0 drivers/hid/hid-saitek.c:154
Code: 96 f8 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 cd 52 09 f9 4d 8b 36 49 83 c6 18 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 b0 52 09 f9 49 8b 06 48 89 04 24
RSP: 0018:ffffc90000a38830 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff88801c735888 RCX: ffff88801f2f1f40
RDX: 0000000000000100 RSI: 0000000000000100 RDI: ffff888036670000
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000000
R10: ffff88801c7358a8 R11: ffffffff89326430 R12: ffffffff914e4848
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff888036670000
FS:  0000000000000000(0000) GS:ffff88812351f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f644f74bd58 CR3: 0000000071fb2000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 hid_process_event+0x436/0x620 drivers/hid/hid-core.c:1572
 hid_process_report drivers/hid/hid-core.c:1730 [inline]
 hid_report_raw_event+0xf6a/0x1900 drivers/hid/hid-core.c:2109
 __hid_input_report+0x454/0x580 drivers/hid/hid-core.c:2180
 hid_ctrl+0x204/0x580 drivers/hid/usbhid/hid-core.c:486
 __usb_hcd_giveback_urb+0x378/0x540 drivers/usb/core/hcd.c:1658
 dummy_timer+0xa91/0x4cc0 drivers/usb/gadget/udc/dummy_hcd.c:2023
 __run_hrtimer kernel/time/hrtimer.c:2075 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132
 hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2149
 handle_softirqs+0x223/0x840 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:finish_task_switch+0x413/0xc60 kernel/sched/core.c:5435
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 d7 02 6f 0a e8 b2 7d 3a 00 fb 4c 8b 65 c8 <49> 8d bc 24 18 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc900001c7be0 EFLAGS: 00000206
RAX: 0000000000031d2d RBX: ffff8880b833cf60 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e7cc01a RDI: ffffffff8c8f8580
RBP: ffffc900001c7c30 R08: ffffffff91bc4abf R09: 1ffffffff2378957
R10: dffffc0000000000 R11: fffffbfff2378958 R12: ffff88801f2f1f40
R13: ffff88801f2f1f40 R14: dffffc0000000000 R15: 1ffff110170679ec
 context_switch kernel/sched/core.c:5587 [inline]
 __schedule+0x1b4f/0x5b40 kernel/sched/core.c:7387
 schedule_idle+0x51/0x90 kernel/sched/core.c:7505
 do_idle+0x4ad/0x540 kernel/sched/idle.c:384
 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454
 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312
 common_startup_64+0x13e/0x157
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:saitek_event+0x51/0x2b0 drivers/hid/hid-saitek.c:154
Code: 96 f8 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 cd 52 09 f9 4d 8b 36 49 83 c6 18 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 b0 52 09 f9 49 8b 06 48 89 04 24
RSP: 0018:ffffc90000a38830 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff88801c735888 RCX: ffff88801f2f1f40
RDX: 0000000000000100 RSI: 0000000000000100 RDI: ffff888036670000
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000000
R10: ffff88801c7358a8 R11: ffffffff89326430 R12: ffffffff914e4848
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff888036670000
FS:  0000000000000000(0000) GS:ffff88812351f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f644f74bd58 CR3: 0000000071fb2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	96                   	xchg   %eax,%esi
   1:	f8                   	clc
   2:	49 83 c6 78          	add    $0x78,%r14
   6:	4c 89 f0             	mov    %r14,%rax
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  12:	74 08                	je     0x1c
  14:	4c 89 f7             	mov    %r14,%rdi
  17:	e8 cd 52 09 f9       	call   0xf90952e9
  1c:	4d 8b 36             	mov    (%r14),%r14
  1f:	49 83 c6 18          	add    $0x18,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 b0 52 09 f9       	call   0xf90952e9
  39:	49 8b 06             	mov    (%r14),%rax
  3c:	48 89 04 24          	mov    %rax,(%rsp)