general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 4435 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:saitek_event+0x4d/0x2a0 drivers/hid/hid-saitek.c:154
Code: c5 f9 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 01 97 16 fa 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 e4 96 16 fa 49 8b 06 48 89 04 24
RSP: 0018:ffffc90000007690 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff888029b2e488 RCX: ffff88807a9a5a00
RDX: 0000000000000100 RSI: ffff888029b2e400 RDI: ffff88807bbf8000
RBP: 000000000000008d R08: 0000000000000000 R09: ffff888029b2e4a4
R10: dffffc0000000000 R11: ffffed1005365c95 R12: ffffffff8e9face8
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff88807bbf8000
FS: 00007fbaf0c626c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbaf0c61ff8 CR3: 0000000077646000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hid_process_event+0x42f/0x610 drivers/hid/hid-core.c:1549
hid_process_report drivers/hid/hid-core.c:1707 [inline]
hid_report_raw_event+0x1046/0x1970 drivers/hid/hid-core.c:2065
hid_input_report+0x432/0x4f0 drivers/hid/hid-core.c:2134
hid_ctrl+0x23f/0x520 drivers/hid/usbhid/hid-core.c:483
__usb_hcd_giveback_urb+0x35d/0x520 drivers/usb/core/hcd.c:1675
dummy_timer+0xa39/0x34e0 drivers/usb/gadget/udc/dummy_hcd.c:2018
__run_hrtimer kernel/time/hrtimer.c:1751 [inline]
__hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
handle_softirqs+0x291/0x910 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/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 ff c7 1a f7 65 8b 05 c0 77 c4 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc9000351f9a0 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: d18b37e7e9244900
RDX: dffffc0000000000 RSI: ffffffff8a8c19a0 RDI: 0000000000000001
RBP: ffffc9000351fa38 R08: ffffffff91934357 R09: 1ffffffff232686a
R10: dffffc0000000000 R11: fffffbfff232686b R12: dffffc0000000000
R13: ffff8880b8c28440 R14: ffff8880b8c28440 R15: 1ffff920006a3f34
__mod_timer+0x925/0xd20 kernel/time/timer.c:1134
schedule_timeout+0x17f/0x2d0 kernel/time/timer.c:2167
usbhid_wait_io+0x24e/0x350 drivers/hid/usbhid/hid-core.c:644
usbhid_init_reports+0x110/0x270 drivers/hid/usbhid/hid-core.c:783
hiddev_ioctl+0x8d3/0x1640 drivers/hid/usbhid/hiddev.c:794
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbaefd9e1d9
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:00007fbaf0c62028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbaf0026090 RCX: 00007fbaefd9e1d9
RDX: 0000000000000000 RSI: 00000000c018480d RDI: 0000000000000004
RBP: 00007fbaefe35888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbaf0026128 R14: 00007fbaf0026090 R15: 00007ffd5973fa28
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:saitek_event+0x4d/0x2a0 drivers/hid/hid-saitek.c:154
Code: c5 f9 49 83 c6 78 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 01 97 16 fa 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 e4 96 16 fa 49 8b 06 48 89 04 24
RSP: 0018:ffffc90000007690 EFLAGS: 00010006
RAX: 0000000000000003 RBX: ffff888029b2e488 RCX: ffff88807a9a5a00
RDX: 0000000000000100 RSI: ffff888029b2e400 RDI: ffff88807bbf8000
RBP: 000000000000008d R08: 0000000000000000 R09: ffff888029b2e4a4
R10: dffffc0000000000 R11: ffffed1005365c95 R12: ffffffff8e9face8
R13: dffffc0000000000 R14: 0000000000000018 R15: ffff88807bbf8000
FS: 00007fbaf0c626c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbaf0c61ff8 CR3: 0000000077646000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: f9 stc
1: 49 83 c6 78 add $0x78,%r14
5: 4c 89 f0 mov %r14,%rax
8: 48 c1 e8 03 shr $0x3,%rax
c: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
11: 74 08 je 0x1b
13: 4c 89 f7 mov %r14,%rdi
16: e8 01 97 16 fa call 0xfa16971c
1b: 4d 8b 36 mov (%r14),%r14
1e: 49 83 c6 18 add $0x18,%r14
22: 4c 89 f0 mov %r14,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 f7 mov %r14,%rdi
33: e8 e4 96 16 fa call 0xfa16971c
38: 49 8b 06 mov (%r14),%rax
3b: 48 89 04 24 mov %rax,(%rsp)