aiptek 2-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 2312 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 314 Comm: udevd Not tainted syzkaller #0 4d4a838cf2fc485b043991145ccf8426a0241c16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
__ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
aiptek_irq+0x208d/0x2a00 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:230 [inline]
RIP: 0010:perf_sw_event include/linux/perf_event.h:1495 [inline]
RIP: 0010:do_user_addr_fault+0x1cf/0x1230 arch/x86/mm/fault.c:1283
Code: 67 fe 9a 00 48 8b 1b 48 89 de 48 81 e6 00 02 00 00 31 ff e8 c3 3e 42 00 48 81 e3 00 02 00 00 0f 84 63 0d 00 00 fb 4c 89 7d b0 <0f> 1f 44 00 00 e8 c7 39 42 00 44 89 f6 83 e6 40 31 ff 48 89 b5 70
RSP: 0000:ffffc9000b727e50 EFLAGS: 00000206
RAX: ffffffff814537dd RBX: 0000000000000200 RCX: ffff888131be8000
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc9000b727f18 R08: 000000000000002b R09: 000000000000002b
R10: 0000000000010206 R11: 00007fff771865b0 R12: 000055ed4541fc38
R13: ffffc9000b727f58 R14: 0000000000000007 R15: ffff888131be8000
handle_page_fault arch/x86/mm/fault.c:1479 [inline]
exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534
asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f630deb98c1
Code: 66 85 c9 74 64 48 8d 7d 10 48 8b 04 fa a8 0f 0f 85 44 02 00 00 48 89 c6 83 e9 01 48 c1 ee 0c 48 33 30 48 89 34 fa 66 89 0c 6a <48> c7 40 08 00 00 00 00 48 83 c4 10 5b 5d 41 5c c3 66 0f 1f 44 00
RSP: 002b:00007fff771865b0 EFLAGS: 00010206
RAX: 000055ed4541fc30 RBX: 000000000000006b RCX: 0000000000000006
RDX: 000055ed451db010 RSI: 000055ed45420f60 RDI: 0000000000000016
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000020
R10: 0000000000000010 R11: 0000000000000000 R12: fffffffffffffea0
R13: 000055ed4541d070 R14: 0000000000000001 R15: 000055ed4541d030
---[ end trace ]---
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x20ab/0x2a00 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff86706ba0 by task udevd/314
CPU: 1 UID: 0 PID: 314 Comm: udevd Not tainted syzkaller #0 4d4a838cf2fc485b043991145ccf8426a0241c16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
print_address_description+0x71/0x210 mm/kasan/report.c:377
print_report+0x4a/0x70 mm/kasan/report.c:481
kasan_report+0x162/0x1a0 mm/kasan/report.c:594
__asan_report_load4_noabort+0x18/0x20 mm/kasan/report_generic.c:380
aiptek_irq+0x20ab/0x2a00 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:230 [inline]
RIP: 0010:perf_sw_event include/linux/perf_event.h:1495 [inline]
RIP: 0010:do_user_addr_fault+0x1cf/0x1230 arch/x86/mm/fault.c:1283
Code: 67 fe 9a 00 48 8b 1b 48 89 de 48 81 e6 00 02 00 00 31 ff e8 c3 3e 42 00 48 81 e3 00 02 00 00 0f 84 63 0d 00 00 fb 4c 89 7d b0 <0f> 1f 44 00 00 e8 c7 39 42 00 44 89 f6 83 e6 40 31 ff 48 89 b5 70
RSP: 0000:ffffc9000b727e50 EFLAGS: 00000206
RAX: ffffffff814537dd RBX: 0000000000000200 RCX: ffff888131be8000
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc9000b727f18 R08: 000000000000002b R09: 000000000000002b
R10: 0000000000010206 R11: 00007fff771865b0 R12: 000055ed4541fc38
R13: ffffc9000b727f58 R14: 0000000000000007 R15: ffff888131be8000
handle_page_fault arch/x86/mm/fault.c:1479 [inline]
exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534
asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f630deb98c1
Code: 66 85 c9 74 64 48 8d 7d 10 48 8b 04 fa a8 0f 0f 85 44 02 00 00 48 89 c6 83 e9 01 48 c1 ee 0c 48 33 30 48 89 34 fa 66 89 0c 6a <48> c7 40 08 00 00 00 00 48 83 c4 10 5b 5d 41 5c c3 66 0f 1f 44 00
RSP: 002b:00007fff771865b0 EFLAGS: 00010206
RAX: 000055ed4541fc30 RBX: 000000000000006b RCX: 0000000000000006
RDX: 000055ed451db010 RSI: 000055ed45420f60 RDI: 0000000000000016
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000020
R10: 0000000000000010 R11: 0000000000000000 R12: fffffffffffffea0
R13: 000055ed4541d070 R14: 0000000000000001 R15: 000055ed4541d030
The buggy address belongs to the variable:
input_test_match_device_id.__loc.44+0x20/0x60
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x6706
flags: 0x4000(reserved|zone=0)
raw: 0000000000004000 ffffea000019c188 ffffea000019c188 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)
Memory state around the buggy address:
ffffffff86706a80: f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9 00 00 00 f9
ffffffff86706b00: f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9 00 00 00 00
>ffffffff86706b80: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 f9 f9 f9
^
ffffffff86706c00: 00 00 00 f9 f9 f9 f9 f9 00 01 f9 f9 00 00 00 f9
ffffffff86706c80: f9 f9 f9 f9 04 f9 f9 f9 04 f9 f9 f9 00 00 00 f9
==================================================================
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 2313 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 314 Comm: udevd Tainted: G B syzkaller #0 4d4a838cf2fc485b043991145ccf8426a0241c16
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
__ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
aiptek_irq+0x1f3c/0x2a00 drivers/input/tablet/aiptek.c:763
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:230 [inline]
RIP: 0010:perf_sw_event include/linux/perf_event.h:1495 [inline]
RIP: 0010:do_user_addr_fault+0x1cf/0x1230 arch/x86/mm/fault.c:1283
Code: 67 fe 9a 00 48 8b 1b 48 89 de 48 81 e6 00 02 00 00 31 ff e8 c3 3e 42 00 48 81 e3 00 02 00 00 0f 84 63 0d 00 00 fb 4c 89 7d b0 <0f> 1f 44 00 00 e8 c7 39 42 00 44 89 f6 83 e6 40 31 ff 48 89 b5 70
RSP: 0000:ffffc9000b727e50 EFLAGS: 00000206
RAX: ffffffff814537dd RBX: 0000000000000200 RCX: ffff888131be8000
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc9000b727f18 R08: 000000000000002b R09: 000000000000002b
R10: 0000000000010206 R11: 00007fff771865b0 R12: 000055ed4541fc38
R13: ffffc9000b727f58 R14: 0000000000000007 R15: ffff888131be8000
handle_page_fault arch/x86/mm/fault.c:1479 [inline]
exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534
asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f630deb98c1
Code: 66 85 c9 74 64 48 8d 7d 10 48 8b 04 fa a8 0f 0f 85 44 02 00 00 48 89 c6 83 e9 01 48 c1 ee 0c 48 33 30 48 89 34 fa 66 89 0c 6a <48> c7 40 08 00 00 00 00 48 83 c4 10 5b 5d 41 5c c3 66 0f 1f 44 00
RSP: 002b:00007fff771865b0 EFLAGS: 00010206
RAX: 000055ed4541fc30 RBX: 000000000000006b RCX: 0000000000000006
RDX: 000055ed451db010 RSI: 000055ed45420f60 RDI: 0000000000000016
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000020
R10: 0000000000000010 R11: 0000000000000000 R12: fffffffffffffea0
R13: 000055ed4541d070 R14: 0000000000000001 R15: 000055ed4541d030
---[ end trace ]---
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
aiptek 1-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
aiptek 3-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess), 3 bytes skipped:
0: 00 48 8b add %cl,-0x75(%rax)
3: 1b 48 89 sbb -0x77(%rax),%ecx
6: de 48 81 fimuls -0x7f(%rax)
9: e6 00 out %al,$0x0
b: 02 00 add (%rax),%al
d: 00 31 add %dh,(%rcx)
f: ff ljmp (bad)
10: e8 c3 3e 42 00 call 0x423ed8
15: 48 81 e3 00 02 00 00 and $0x200,%rbx
1c: 0f 84 63 0d 00 00 je 0xd85
22: fb sti
23: 4c 89 7d b0 mov %r15,-0x50(%rbp)
* 27: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction
2c: e8 c7 39 42 00 call 0x4239f8
31: 44 89 f6 mov %r14d,%esi
34: 83 e6 40 and $0x40,%esi
37: 31 ff xor %edi,%edi
39: 48 rex.W
3a: 89 .byte 0x89
3b: b5 70 mov $0x70,%ch