================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 547 is out of range for type 'const int[34]'
CPU: 0 PID: 310 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x24 lib/dump_stack.c:113
ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
__ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
aiptek_irq+0x2045/0x29b0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x360/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1758
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x398/0x890 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:stack_trace_consume_entry+0xf8/0x290 kernel/stacktrace.c:93
Code: ff 48 8b 75 c0 4c 8b 37 45 8d 7a 01 0f b6 04 13 84 c0 0f 85 45 01 00 00 45 89 38 4f 8d 3c d6 4c 89 f8 48 c1 e8 03 80 3c 10 00 <74> 1e 4c 89 ff 49 89 d6 4d 89 c4 4c 89 cb e8 95 ed 54 00 49 89 d9
RSP: 0018:ffffc900016e7750 EFLAGS: 00000246
RAX: 1ffff920002dcf29 RBX: 1ffff920002dcf0e RCX: 00000000002dce00
RDX: dffffc0000000000 RSI: ffffffff852000cc RDI: ffffc900016e7860
RBP: ffffc900016e7798 R08: ffffc900016e7870 R09: ffffc900016e7868
R10: 000000000000000b R11: fffff520002dcf01 R12: ffffc900016e786c
R13: 1ffff920002dcf0d R14: ffffc900016e78f0 R15: ffffc900016e7948
arch_stack_walk+0x118/0x150 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
kasan_slab_free include/linux/kasan.h:178 [inline]
slab_free_hook mm/slub.c:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
kmem_cache_free+0x12d/0x300 mm/slub.c:3737
putname+0x111/0x160 fs/namei.c:272
vfs_fstatat fs/stat.c:268 [inline]
__do_sys_newfstatat fs/stat.c:437 [inline]
__se_sys_newfstatat+0x14d/0x440 fs/stat.c:431
__x64_sys_newfstatat+0x9b/0xb0 fs/stat.c:431
x64_sys_call+0x77c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:263
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: 0033:0x7f6e6f511b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffd46b83228 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000556326377747 RCX: 00007f6e6f511b0a
RDX: 00007ffd46b83230 RSI: 00007ffd46b832c0 RDI: 00000000ffffff9c
RBP: 0000556355dbc7a0 R08: 0000556326377747 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000202 R12: 0000556355dbc890
R13: 00007ffd46b832c0 R14: 00007ffd46b847a0 R15: 00007ffd46b847e0
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff85e65d8c by task udevd/310
CPU: 0 PID: 310 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
print_address_description+0x71/0x200 mm/kasan/report.c:316
print_report+0x4a/0x60 mm/kasan/report.c:420
kasan_report+0x122/0x150 mm/kasan/report.c:524
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x360/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1758
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x398/0x890 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:stack_trace_consume_entry+0xf8/0x290 kernel/stacktrace.c:93
Code: ff 48 8b 75 c0 4c 8b 37 45 8d 7a 01 0f b6 04 13 84 c0 0f 85 45 01 00 00 45 89 38 4f 8d 3c d6 4c 89 f8 48 c1 e8 03 80 3c 10 00 <74> 1e 4c 89 ff 49 89 d6 4d 89 c4 4c 89 cb e8 95 ed 54 00 49 89 d9
RSP: 0018:ffffc900016e7750 EFLAGS: 00000246
RAX: 1ffff920002dcf29 RBX: 1ffff920002dcf0e RCX: 00000000002dce00
RDX: dffffc0000000000 RSI: ffffffff852000cc RDI: ffffc900016e7860
RBP: ffffc900016e7798 R08: ffffc900016e7870 R09: ffffc900016e7868
R10: 000000000000000b R11: fffff520002dcf01 R12: ffffc900016e786c
R13: 1ffff920002dcf0d R14: ffffc900016e78f0 R15: ffffc900016e7948
arch_stack_walk+0x118/0x150 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
kasan_slab_free include/linux/kasan.h:178 [inline]
slab_free_hook mm/slub.c:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
kmem_cache_free+0x12d/0x300 mm/slub.c:3737
putname+0x111/0x160 fs/namei.c:272
vfs_fstatat fs/stat.c:268 [inline]
__do_sys_newfstatat fs/stat.c:437 [inline]
__se_sys_newfstatat+0x14d/0x440 fs/stat.c:431
__x64_sys_newfstatat+0x9b/0xb0 fs/stat.c:431
x64_sys_call+0x77c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:263
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: 0033:0x7f6e6f511b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffd46b83228 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000556326377747 RCX: 00007f6e6f511b0a
RDX: 00007ffd46b83230 RSI: 00007ffd46b832c0 RDI: 00000000ffffff9c
RBP: 0000556355dbc7a0 R08: 0000556326377747 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000202 R12: 0000556355dbc890
R13: 00007ffd46b832c0 R14: 00007ffd46b847a0 R15: 00007ffd46b847e0
The buggy address belongs to the variable:
.str.47+0xc/0x20
The buggy address belongs to the physical page:
page:ffffea0000179940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e65
flags: 0x1000(reserved|zone=0)
raw: 0000000000001000 ffffea0000179948 ffffea0000179948 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:
ffffffff85e65c80: 05 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
ffffffff85e65d00: 00 00 00 00 f9 f9 f9 f9 06 f9 f9 f9 00 01 f9 f9
>ffffffff85e65d80: 04 f9 f9 f9 00 f9 f9 f9 06 f9 f9 f9 07 f9 f9 f9
^
ffffffff85e65e00: 06 f9 f9 f9 00 04 f9 f9 05 f9 f9 f9 00 03 f9 f9
ffffffff85e65e80: 00 03 f9 f9 00 00 00 00 03 f9 f9 f9 f9 f9 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 548 is out of range for type 'const int[34]'
CPU: 0 PID: 310 Comm: udevd Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x24 lib/dump_stack.c:113
ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
__ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
aiptek_irq+0x1f14/0x29b0 drivers/input/tablet/aiptek.c:763
__usb_hcd_giveback_urb+0x360/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1758
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x398/0x890 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:stack_trace_consume_entry+0xf8/0x290 kernel/stacktrace.c:93
Code: ff 48 8b 75 c0 4c 8b 37 45 8d 7a 01 0f b6 04 13 84 c0 0f 85 45 01 00 00 45 89 38 4f 8d 3c d6 4c 89 f8 48 c1 e8 03 80 3c 10 00 <74> 1e 4c 89 ff 49 89 d6 4d 89 c4 4c 89 cb e8 95 ed 54 00 49 89 d9
RSP: 0018:ffffc900016e7750 EFLAGS: 00000246
RAX: 1ffff920002dcf29 RBX: 1ffff920002dcf0e RCX: 00000000002dce00
RDX: dffffc0000000000 RSI: ffffffff852000cc RDI: ffffc900016e7860
RBP: ffffc900016e7798 R08: ffffc900016e7870 R09: ffffc900016e7868
R10: 000000000000000b R11: fffff520002dcf01 R12: ffffc900016e786c
R13: 1ffff920002dcf0d R14: ffffc900016e78f0 R15: ffffc900016e7948
arch_stack_walk+0x118/0x150 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
kasan_slab_free include/linux/kasan.h:178 [inline]
slab_free_hook mm/slub.c:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
kmem_cache_free+0x12d/0x300 mm/slub.c:3737
putname+0x111/0x160 fs/namei.c:272
vfs_fstatat fs/stat.c:268 [inline]
__do_sys_newfstatat fs/stat.c:437 [inline]
__se_sys_newfstatat+0x14d/0x440 fs/stat.c:431
__x64_sys_newfstatat+0x9b/0xb0 fs/stat.c:431
x64_sys_call+0x77c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:263
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: 0033:0x7f6e6f511b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffd46b83228 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000556326377747 RCX: 00007f6e6f511b0a
RDX: 00007ffd46b83230 RSI: 00007ffd46b832c0 RDI: 00000000ffffff9c
RBP: 0000556355dbc7a0 R08: 0000556326377747 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000202 R12: 0000556355dbc890
R13: 00007ffd46b832c0 R14: 00007ffd46b847a0 R15: 00007ffd46b847e0
================================================================================
aiptek 3-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: ff 48 8b decl -0x75(%rax)
3: 75 c0 jne 0xffffffc5
5: 4c 8b 37 mov (%rdi),%r14
8: 45 8d 7a 01 lea 0x1(%r10),%r15d
c: 0f b6 04 13 movzbl (%rbx,%rdx,1),%eax
10: 84 c0 test %al,%al
12: 0f 85 45 01 00 00 jne 0x15d
18: 45 89 38 mov %r15d,(%r8)
1b: 4f 8d 3c d6 lea (%r14,%r10,8),%r15
1f: 4c 89 f8 mov %r15,%rax
22: 48 c1 e8 03 shr $0x3,%rax
26: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1)
* 2a: 74 1e je 0x4a <-- trapping instruction
2c: 4c 89 ff mov %r15,%rdi
2f: 49 89 d6 mov %rdx,%r14
32: 4d 89 c4 mov %r8,%r12
35: 4c 89 cb mov %r9,%rbx
38: e8 95 ed 54 00 call 0x54edd2
3d: 49 89 d9 mov %rbx,%r9