================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 1615 is out of range for type 'const int[34]'
CPU: 0 PID: 536 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:selinux_inode_permission+0x118/0x5d0 security/selinux/hooks.c:3111
Code: 89 e0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 1a 04 00 00 45 8b 3c 24 44 89 fe 81 e6 00 02 00 00 45 31 e4 31 ff e8 98 82 36 ff <41> 81 e7 00 02 00 00 0f 85 48 03 00 00 4c 8b 7c 24 10 4c 89 f8 48
RSP: 0018:ffffc90011f076e0 EFLAGS: 00000293
RAX: ffffffff823ad6a8 RBX: ffff88811e1e0000 RCX: 0000000000000000
RDX: ffff88811defa880 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90011f077b0 R08: ffff8881001b0a67 R09: 1ffff1102003614c
R10: 0000000000000000 R11: ffffffff823ad590 R12: 0000000000000000
R13: 0000000000000001 R14: 1ffff920023e0ee0 R15: 0000000000000000
security_inode_permission+0xb5/0x110 security/security.c:1341
inode_permission+0xef/0x4b0 fs/namei.c:535
may_lookup fs/namei.c:1727 [inline]
link_path_walk+0x2d7/0xeb0 fs/namei.c:2274
path_openat+0x27f/0x2f30 fs/namei.c:3786
do_filp_open+0x1ee/0x420 fs/namei.c:3817
do_sys_openat2+0x15e/0x820 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f37f80a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff7f6c2640 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f37f878e880 RCX: 00007f37f80a7407
RDX: 0000000000080000 RSI: 00007fff7f6c2770 RDI: ffffffffffffff9c
RBP: 0000558601603330 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000558601603420
R13: 00007fff7f6c2770 R14: 00005585e0db0ca4 R15: 00005585e0db0bcc
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff85e6663c by task udevd/536
CPU: 0 PID: 536 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:selinux_inode_permission+0x118/0x5d0 security/selinux/hooks.c:3111
Code: 89 e0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 1a 04 00 00 45 8b 3c 24 44 89 fe 81 e6 00 02 00 00 45 31 e4 31 ff e8 98 82 36 ff <41> 81 e7 00 02 00 00 0f 85 48 03 00 00 4c 8b 7c 24 10 4c 89 f8 48
RSP: 0018:ffffc90011f076e0 EFLAGS: 00000293
RAX: ffffffff823ad6a8 RBX: ffff88811e1e0000 RCX: 0000000000000000
RDX: ffff88811defa880 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90011f077b0 R08: ffff8881001b0a67 R09: 1ffff1102003614c
R10: 0000000000000000 R11: ffffffff823ad590 R12: 0000000000000000
R13: 0000000000000001 R14: 1ffff920023e0ee0 R15: 0000000000000000
security_inode_permission+0xb5/0x110 security/security.c:1341
inode_permission+0xef/0x4b0 fs/namei.c:535
may_lookup fs/namei.c:1727 [inline]
link_path_walk+0x2d7/0xeb0 fs/namei.c:2274
path_openat+0x27f/0x2f30 fs/namei.c:3786
do_filp_open+0x1ee/0x420 fs/namei.c:3817
do_sys_openat2+0x15e/0x820 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f37f80a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff7f6c2640 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f37f878e880 RCX: 00007f37f80a7407
RDX: 0000000000080000 RSI: 00007fff7f6c2770 RDI: ffffffffffffff9c
RBP: 0000558601603330 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000558601603420
R13: 00007fff7f6c2770 R14: 00005585e0db0ca4 R15: 00005585e0db0bcc
The buggy address belongs to the variable:
.str.7+0x5c/0x60
The buggy address belongs to the physical page:
page:ffffea0000179980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e66
flags: 0x1000(reserved|zone=0)
raw: 0000000000001000 ffffea0000179988 ffffea0000179988 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:
ffffffff85e66500: 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
ffffffff85e66580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffff85e66600: 07 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 07 f9
^
ffffffff85e66680: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9
ffffffff85e66700: 00 00 00 00 00 00 00 07 f9 f9 f9 f9 00 00 00 00
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 1616 is out of range for type 'const int[34]'
CPU: 0 PID: 536 Comm: udevd Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:selinux_inode_permission+0x118/0x5d0 security/selinux/hooks.c:3111
Code: 89 e0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 1a 04 00 00 45 8b 3c 24 44 89 fe 81 e6 00 02 00 00 45 31 e4 31 ff e8 98 82 36 ff <41> 81 e7 00 02 00 00 0f 85 48 03 00 00 4c 8b 7c 24 10 4c 89 f8 48
RSP: 0018:ffffc90011f076e0 EFLAGS: 00000293
RAX: ffffffff823ad6a8 RBX: ffff88811e1e0000 RCX: 0000000000000000
RDX: ffff88811defa880 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90011f077b0 R08: ffff8881001b0a67 R09: 1ffff1102003614c
R10: 0000000000000000 R11: ffffffff823ad590 R12: 0000000000000000
R13: 0000000000000001 R14: 1ffff920023e0ee0 R15: 0000000000000000
security_inode_permission+0xb5/0x110 security/security.c:1341
inode_permission+0xef/0x4b0 fs/namei.c:535
may_lookup fs/namei.c:1727 [inline]
link_path_walk+0x2d7/0xeb0 fs/namei.c:2274
path_openat+0x27f/0x2f30 fs/namei.c:3786
do_filp_open+0x1ee/0x420 fs/namei.c:3817
do_sys_openat2+0x15e/0x820 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f37f80a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff7f6c2640 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f37f878e880 RCX: 00007f37f80a7407
RDX: 0000000000080000 RSI: 00007fff7f6c2770 RDI: ffffffffffffff9c
RBP: 0000558601603330 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000558601603420
R13: 00007fff7f6c2770 R14: 00005585e0db0ca4 R15: 00005585e0db0bcc
================================================================================
aiptek 7-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 89 e0 mov %esp,%eax
2: 48 c1 e8 03 shr $0x3,%rax
6: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax
b: 84 c0 test %al,%al
d: 0f 85 1a 04 00 00 jne 0x42d
13: 45 8b 3c 24 mov (%r12),%r15d
17: 44 89 fe mov %r15d,%esi
1a: 81 e6 00 02 00 00 and $0x200,%esi
20: 45 31 e4 xor %r12d,%r12d
23: 31 ff xor %edi,%edi
25: e8 98 82 36 ff call 0xff3682c2
* 2a: 41 81 e7 00 02 00 00 and $0x200,%r15d <-- trapping instruction
31: 0f 85 48 03 00 00 jne 0x37f
37: 4c 8b 7c 24 10 mov 0x10(%rsp),%r15
3c: 4c 89 f8 mov %r15,%rax
3f: 48 rex.W