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: 5628 Comm: sshd-session 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: ffff88801cb78588 RCX: ffff888078959f40
RDX: 8000000000000100 RSI: 0000000000000100 RDI: ffff8880796e8000
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000000
R10: ffff88801cb785a8 R11: ffffffff89326430 R12: ffffffff914e4848
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff8880796e8000
FS:  00007fa279b7f300(0000) GS:ffff88812351f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9cdb626ff8 CR3: 0000000036a14000 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:bytes_is_nonzero mm/kasan/generic.c:98 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:119 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:140 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline]
RIP: 0010:kasan_check_range+0xb6/0x2c0 mm/kasan/generic.c:200
Code: cb 48 f7 d3 4c 01 fb 41 80 3b 00 0f 85 9e 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd 83 e5 07 0f 84 b5 00 00 00 <41> 80 3b 00 4d 89 dc 0f 85 b3 01 00 00 83 fd 07 0f 84 8d 00 00 00
RSP: 0018:ffffc90003d6f7c8 EFLAGS: 00000206
RAX: ffffc90003d6fc01 RBX: dffffc0000000001 RCX: ffffffff82562b98
RDX: 0000000000000001 RSI: 0000000000000100 RDI: ffffc90003d6fc30
RBP: 0000000000000006 R08: ffffc90003d6fd2f R09: 1ffff920007adfa5
R10: dffffc0000000000 R11: fffff520007adf86 R12: 0000000000000020
R13: dffffc0000000000 R14: fffff520007adfa6 R15: 1ffff920007adf86
 __asan_memset+0x22/0x50 mm/kasan/shadow.c:84
 do_sys_poll+0x168/0x1150 fs/select.c:982
 __do_sys_ppoll fs/select.c:1112 [inline]
 __se_sys_ppoll+0x209/0x2b0 fs/select.c:1092
 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: 0033:0x7fa2794a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffdac95c600 EFLAGS: 00000202 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007fa279b7f300 RCX: 00007fa2794a7407
RDX: 00007ffdac95c640 RSI: 0000000000000004 RDI: 0000556366156150
RBP: 00007ffdac95c6b0 R08: 0000000000000008 R09: 0000000000000000
R10: 00007ffdac95c740 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffdac95c740 R14: 000000000000005b R15: 0000000000000004
 </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: ffff88801cb78588 RCX: ffff888078959f40
RDX: 8000000000000100 RSI: 0000000000000100 RDI: ffff8880796e8000
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000000
R10: ffff88801cb785a8 R11: ffffffff89326430 R12: ffffffff914e4848
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff8880796e8000
FS:  00007fa279b7f300(0000) GS:ffff88812351f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9cdb626ff8 CR3: 0000000036a14000 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)