general protection fault, probably for non-canonical address 0xdffffc0000000066: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000330-0x0000000000000337] CPU: 1 PID: 10016 Comm: syz.5.892 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:wacom_intuos_irq+0x33fa/0x34a0 drivers/hid/wacom_wac.c:1082 Code: 7c 24 28 e8 78 67 d9 f9 e9 56 f1 ff ff e8 6e db 80 f9 49 81 c6 30 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 68 67 d9 f9 4d 8b 36 48 b8 00 00 00 RSP: 0018:ffffc9000c487770 EFLAGS: 00010206 RAX: 0000000000000066 RBX: 1ffff1100b89f46b RCX: dffffc0000000000 RDX: ffffc9000db96000 RSI: 0000000000000a7b RDI: 0000000000000a7c RBP: ffff88805c4fa038 R08: ffff88801e6e9e00 R09: 0000000000000007 R10: 0000000000000011 R11: 0000000000000002 R12: 1ffff1100b89f427 R13: 0000000000000000 R14: 0000000000000330 R15: dffffc0000000000 FS: 00007fa059fd56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa059fd4ff8 CR3: 000000002ff00000 CR4: 00000000003506e0 Call Trace: wacom_wac_irq+0xed1/0x9d10 drivers/hid/wacom_wac.c:3474 wacom_raw_event+0xae7/0xe00 drivers/hid/wacom_sys.c:169 hid_input_report+0x3ed/0x500 drivers/hid/hid-core.c:2132 uhid_dev_input2+0xb1/0x130 drivers/hid/uhid.c:610 uhid_char_write+0x4ac/0xc60 drivers/hid/uhid.c:768 vfs_write+0x299/0x9a0 fs/read_write.c:582 ksys_write+0x151/0x260 fs/read_write.c:637 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: 0033:0x7fa05bd9e159 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:00007fa059fd5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa05c026090 RCX: 00007fa05bd9e159 RDX: 0000000000000010 RSI: 0000200000000300 RDI: 0000000000000003 RBP: 00007fa05be3506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa05c026128 R14: 00007fa05c026090 R15: 00007ffc687352e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wacom_intuos_irq+0x33fa/0x34a0 drivers/hid/wacom_wac.c:1082 Code: 7c 24 28 e8 78 67 d9 f9 e9 56 f1 ff ff e8 6e db 80 f9 49 81 c6 30 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 68 67 d9 f9 4d 8b 36 48 b8 00 00 00 RSP: 0018:ffffc9000c487770 EFLAGS: 00010206 RAX: 0000000000000066 RBX: 1ffff1100b89f46b RCX: dffffc0000000000 RDX: ffffc9000db96000 RSI: 0000000000000a7b RDI: 0000000000000a7c RBP: ffff88805c4fa038 R08: ffff88801e6e9e00 R09: 0000000000000007 R10: 0000000000000011 R11: 0000000000000002 R12: 1ffff1100b89f427 R13: 0000000000000000 R14: 0000000000000330 R15: dffffc0000000000 FS: 00007fa059fd56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c472bc2 CR3: 000000002ff00000 CR4: 00000000003506e0 ---------------- Code disassembly (best guess): 0: 7c 24 jl 0x26 2: 28 e8 sub %ch,%al 4: 78 67 js 0x6d 6: d9 f9 fyl2xp1 8: e9 56 f1 ff ff jmp 0xfffff163 d: e8 6e db 80 f9 call 0xf980db80 12: 49 81 c6 30 03 00 00 add $0x330,%r14 19: 4c 89 f0 mov %r14,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 68 67 d9 f9 call 0xf9d967a0 38: 4d 8b 36 mov (%r14),%r14 3b: 48 rex.W 3c: b8 .byte 0xb8 3d: 00 00 add %al,(%rax)