Oops: general protection fault, probably for non-canonical address 0xdffffc000000006c: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367] CPU: 1 UID: 0 PID: 6035 Comm: syz-executor211 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:wacom_intuos_irq+0x3318/0x33f0 drivers/hid/wacom_wac.c:1036 Code: f1 ff ff 48 8b 7c 24 10 e8 15 6b 9b f9 e9 0c f1 ff ff 49 81 c6 60 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 1a 6b 9b f9 49 8b 1e 48 b8 00 00 00 RSP: 0018:ffffc900078f78f0 EFLAGS: 00010206 RAX: 000000000000006c RBX: 1ffff11009561a29 RCX: dffffc0000000000 RDX: ffffffff88970fda RSI: ffffffff8f44ff80 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88802de2be80 R09: 0000000000000007 R10: 0000000000000100 R11: 0000000000000011 R12: ffff88802ab6c0a6 R13: 1ffff11009561a40 R14: 0000000000000360 R15: 1ffff1100556d814 FS: 00005555570ad4c0(0000) GS:ffff888125cc4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5fd1ec22c0 CR3: 00000000456da000 CR4: 00000000003526f0 Call Trace: wacom_wac_irq+0x102d/0x9b90 drivers/hid/wacom_wac.c:3511 wacom_raw_event+0x9d2/0xd10 drivers/hid/wacom_sys.c:183 __hid_input_report+0x421/0x580 drivers/hid/hid-core.c:2175 uhid_dev_input2+0xbc/0x150 drivers/hid/uhid.c:609 uhid_char_write+0x4a7/0xc90 drivers/hid/uhid.c:767 vfs_write+0x29f/0xbb0 fs/read_write.c:685 ksys_write+0x156/0x270 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: 0033:0x7f581ab93359 Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe67ae9b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f581ab93359 RDX: 0000000000000010 RSI: 0000200000000300 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00007ffe67ae9bb8 R09: 00007ffe67ae9bb8 R10: 00007ffe67ae9bb8 R11: 0000000000000246 R12: 00007ffe67ae9bb8 R13: 00007ffe67ae9bd0 R14: 00007ffe67ae9c10 R15: 000000000000001f Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wacom_intuos_irq+0x3318/0x33f0 drivers/hid/wacom_wac.c:1036 Code: f1 ff ff 48 8b 7c 24 10 e8 15 6b 9b f9 e9 0c f1 ff ff 49 81 c6 60 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 1a 6b 9b f9 49 8b 1e 48 b8 00 00 00 RSP: 0018:ffffc900078f78f0 EFLAGS: 00010206 RAX: 000000000000006c RBX: 1ffff11009561a29 RCX: dffffc0000000000 RDX: ffffffff88970fda RSI: ffffffff8f44ff80 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88802de2be80 R09: 0000000000000007 R10: 0000000000000100 R11: 0000000000000011 R12: ffff88802ab6c0a6 R13: 1ffff11009561a40 R14: 0000000000000360 R15: 1ffff1100556d814 FS: 00005555570ad4c0(0000) GS:ffff888125cc4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557629a5a978 CR3: 00000000456da000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi 5: e8 15 6b 9b f9 call 0xf99b6b1f a: e9 0c f1 ff ff jmp 0xfffff11b f: 49 81 c6 60 03 00 00 add $0x360,%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 1a 6b 9b f9 call 0xf99b6b4f 35: 49 8b 1e mov (%r14),%rbx 38: 48 rex.W 39: b8 .byte 0xb8 3a: 00 00 add %al,(%rax)