general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 PID: 6211 Comm: syz.0.89 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:saitek_event+0x51/0x2a0 drivers/hid/hid-saitek.c:154
Code: 84 f9 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 3d 8d dd 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 20 8d dd f9 49 8b 06 48 89 04 24
RSP: 0018:ffffc900001f06b0 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff88802dea8a88 RCX: 0000000000040000
RDX: ffffc900022a3000 RSI: 0000000000001bfb RDI: 0000000000001bfc
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000004
R10: ffff88802dea8aa4 R11: ffffed1005bd5155 R12: ffffffff8f0632a8
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff88805dda0000
FS:  00007f89c43d56c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89c43d4ff8 CR3: 0000000026e53000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 hid_process_event+0x42f/0x610 drivers/hid/hid-core.c:1546
 hid_process_report drivers/hid/hid-core.c:1704 [inline]
 hid_report_raw_event+0x1028/0x1950 drivers/hid/hid-core.c:2062
 hid_input_report+0x420/0x500 drivers/hid/hid-core.c:2137
 hid_ctrl+0x1e2/0x530 drivers/hid/usbhid/hid-core.c:483
 __usb_hcd_giveback_urb+0x35d/0x520 drivers/usb/core/hcd.c:1650
 dummy_timer+0xa58/0x34e0 drivers/usb/gadget/udc/dummy_hcd.c:2017
 __run_hrtimer kernel/time/hrtimer.c:1754 [inline]
 __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xc0/0x120 kernel/locking/spinlock.c:194
Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> ab 35 c0 f6 65 8b 05 1c f3 66 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc9000ba079a0 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: 6905ceffde4aa500
RDX: dffffc0000000000 RSI: ffffffff8acacfe0 RDI: 0000000000000001
RBP: ffffc9000ba07a30 R08: ffffffff91ff161f R09: 1ffffffff23fe2c3
R10: dffffc0000000000 R11: fffffbfff23fe2c4 R12: dffffc0000000000
R13: ffff8880b8d295c0 R14: ffff8880b8d295c0 R15: 1ffff92001740f34
 __mod_timer+0x9b0/0xd60 kernel/time/timer.c:1134
 schedule_timeout+0x183/0x2d0 kernel/time/timer.c:2167
 usbhid_wait_io+0x26d/0x330 drivers/hid/usbhid/hid-core.c:644
 usbhid_init_reports+0x114/0x270 drivers/hid/usbhid/hid-core.c:783
 hiddev_ioctl+0x8bf/0x1630 drivers/hid/usbhid/hiddev.c:794
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f89c619e1d9
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:00007f89c43d5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f89c6426090 RCX: 00007f89c619e1d9
RDX: 0000000000000000 RSI: 00000000c018480d RDI: 0000000000000004
RBP: 00007f89c6235888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f89c6426128 R14: 00007f89c6426090 R15: 00007ffcad9e34b8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:saitek_event+0x51/0x2a0 drivers/hid/hid-saitek.c:154
Code: 84 f9 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 3d 8d dd 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 20 8d dd f9 49 8b 06 48 89 04 24
RSP: 0018:ffffc900001f06b0 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff88802dea8a88 RCX: 0000000000040000
RDX: ffffc900022a3000 RSI: 0000000000001bfb RDI: 0000000000001bfc
RBP: 000000000000008d R08: 0000000000000000 R09: 0000000000000004
R10: ffff88802dea8aa4 R11: ffffed1005bd5155 R12: ffffffff8f0632a8
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff88805dda0000
FS:  00007f89c43d56c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89c43d4ff8 CR3: 0000000026e53000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
   0:	84 f9                	test   %bh,%cl
   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 3d 8d dd f9       	call   0xf9dd8d59
  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 20 8d dd f9       	call   0xf9dd8d59
  39:	49 8b 06             	mov    (%r14),%rax
  3c:	48 89 04 24          	mov    %rax,(%rsp)