general protection fault in wacom_report_numbered

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision
53684276	assessment-security	DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌	❓	general protection fault in wacom_report_numbered_buttons	2026/09/25 00:22	2026/09/25 00:22	2026/09/25 00:58	3c3cdf19

Title	Replies (including bot)	Last reply
[PATCH] HID: wacom: check for NULL pad_input before reporting pad events	1 (1)	2026/09/25 05:53
[syzbot] [input?] general protection fault in wacom_report_numbered_buttons	0 (1)	2026/09/25 03:12

Title

Replies (including bot)

Last reply

[PATCH] HID: wacom: check for NULL pad_input before reporting pad events

1 (1)

2026/09/25 05:53

[syzbot] [input?] general protection fault in wacom_report_numbered_buttons

0 (1)

2026/09/25 03:12

Oops: general protection fault, probably for non-canonical address 0xdffffc000000006c: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367] CPU: 2 UID: 0 PID: 6256 Comm: syz.0.237 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:dev_get_drvdata include/linux/device.h:991 [inline] RIP: 0010:input_get_drvdata include/linux/input.h:396 [inline] RIP: 0010:wacom_report_numbered_buttons+0x37/0x210 drivers/hid/wacom_wac.c:4225 Code: f5 53 48 89 fb 48 83 ec 10 48 89 3c 24 e8 71 92 f1 f8 48 8d bb 60 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b7 01 00 00 48 8b 04 24 4c 8b a0 60 03 00 00 49 RSP: 0018:ffffc90027b5f9a0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: ffffffff891a901f RDI: 0000000000000360 RBP: 0000000000000008 R08: 0000000000000005 R09: 000000000000001f R10: 0000000000000008 R11: 0000000000000000 R12: 0000000000000000 R13: 00000000000002a8 R14: 0000000000000000 R15: 0000000000000000 FS: 000055558f635500(0000) GS:ffff8880d5d53000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000003797a000 CR4: 0000000000352ef0 Call Trace: <TASK> wacom_intuos_pad drivers/hid/wacom_wac.c:643 [inline] wacom_intuos_irq+0x2f8/0x3430 drivers/hid/wacom_wac.c:1042 wacom_bpt_irq drivers/hid/wacom_wac.c:3290 [inline] wacom_wac_irq+0x196b/0xab80 drivers/hid/wacom_wac.c:3560 wacom_raw_event+0x6bb/0xba0 drivers/hid/wacom_sys.c:183 __hid_input_report.constprop.0+0x319/0x470 drivers/hid/hid-core.c:2175 uhid_dev_input2 drivers/hid/uhid.c:609 [inline] uhid_char_write+0xb6b/0x10e0 drivers/hid/uhid.c:767 vfs_write+0x2aa/0x1050 fs/read_write.c:685 ksys_write+0x1f8/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e4899e159 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:00007ffee1ed0688 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f6e48c25fa0 RCX: 00007f6e4899e159 RDX: 0000000000000010 RSI: 0000200000000300 RDI: 0000000000000003 RBP: 00007f6e48a3506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6e48c25fac R14: 00007f6e48c25fa0 R15: 00007f6e48c25fa0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dev_get_drvdata include/linux/device.h:991 [inline] RIP: 0010:input_get_drvdata include/linux/input.h:396 [inline] RIP: 0010:wacom_report_numbered_buttons+0x37/0x210 drivers/hid/wacom_wac.c:4225 Code: f5 53 48 89 fb 48 83 ec 10 48 89 3c 24 e8 71 92 f1 f8 48 8d bb 60 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b7 01 00 00 48 8b 04 24 4c 8b a0 60 03 00 00 49 RSP: 0018:ffffc90027b5f9a0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: ffffffff891a901f RDI: 0000000000000360 RBP: 0000000000000008 R08: 0000000000000005 R09: 000000000000001f R10: 0000000000000008 R11: 0000000000000000 R12: 0000000000000000 R13: 00000000000002a8 R14: 0000000000000000 R15: 0000000000000000 FS: 000055558f635500(0000) GS:ffff8880d5d53000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000003797a000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: f5 cmc 1: 53 push %rbx 2: 48 89 fb mov %rdi,%rbx 5: 48 83 ec 10 sub $0x10,%rsp 9: 48 89 3c 24 mov %rdi,(%rsp) d: e8 71 92 f1 f8 call 0xf8f19283 12: 48 8d bb 60 03 00 00 lea 0x360(%rbx),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 b7 01 00 00 jne 0x1eb 34: 48 8b 04 24 mov (%rsp),%rax 38: 4c 8b a0 60 03 00 00 mov 0x360(%rax),%r12 3f: 49 rex.WB

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/09/24 13:45	upstream	62f4c998b297	3c3cdf19	.config	console log	report	syz / log	C		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-qemu-upstream	general protection fault in wacom_report_numbered_buttons
2026/09/24 13:17	upstream	62f4c998b297	3c3cdf19	.config	console log	report	syz / log	C		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-qemu-upstream	general protection fault in wacom_report_numbered_buttons
2026/09/24 12:53	upstream	62f4c998b297	3c3cdf19	.config	console log	report			info	[disk image (non-bootable)] [vmlinux] [kernel image]	ci-qemu-upstream	general protection fault in wacom_report_numbered_buttons

Crashes (3):

Assets (help?)