./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3212394884
<...>
Warning: Permanently added '10.128.1.13' (ED25519) to the list of known hosts.
execve("./syz-executor3212394884", ["./syz-executor3212394884"], 0x7ffc64d35ad0 /* 10 vars */) = 0
brk(NULL) = 0x555586af0000
brk(0x555586af0d00) = 0x555586af0d00
arch_prctl(ARCH_SET_FS, 0x555586af0380) = 0
set_tid_address(0x555586af0650) = 5853
set_robust_list(0x555586af0660, 24) = 0
rseq(0x555586af0ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3212394884", 4096) = 28
getrandom("\xbb\x19\xda\x80\xde\xc6\xc8\x83", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555586af0d00
brk(0x555586b11d00) = 0x555586b11d00
brk(0x555586b12000) = 0x555586b12000
mprotect(0x7f488727c000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program
) = 0x200001000000
write(1, "executing program\n", 18) = 18
openat(AT_FDCWD, "/dev/comedi1", O_RDONLY|O_EXCL|O_NOCTTY|FASYNC) = 3
[ 90.603922][ T5853] ------------[ cut here ]------------
[ 90.610138][ T5853] UBSAN: shift-out-of-bounds in drivers/comedi/drivers/pcl812.c:1152:10
[ 90.619002][ T5853] shift exponent 1073741829 is too large for 32-bit type 'int'
[ 90.626661][ T5853] CPU: 1 UID: 0 PID: 5853 Comm: syz-executor321 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full)
[ 90.626688][ T5853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 90.626709][ T5853] Call Trace:
[ 90.626718][ T5853]
[ 90.626727][ T5853] dump_stack_lvl+0x189/0x250
[ 90.626780][ T5853] ? __pfx_dump_stack_lvl+0x10/0x10
[ 90.626809][ T5853] ? __pfx__printk+0x10/0x10
[ 90.626856][ T5853] ubsan_epilogue+0xa/0x40
[ 90.626878][ T5853] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 90.626935][ T5853] pcl812_attach+0x1b9e/0x2300
[ 90.626989][ T5853] comedi_device_attach+0x51d/0x670
[ 90.627027][ T5853] comedi_unlocked_ioctl+0x686/0xf40
[ 90.627064][ T5853] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 90.627115][ T5853] ? _raw_spin_lock_irq+0xae/0xf0
[ 90.627188][ T5853] ? __pfx_ptrace_notify+0x10/0x10
[ 90.627232][ T5853] ? bpf_lsm_file_ioctl+0x9/0x20
[ 90.627260][ T5853] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 90.627287][ T5853] __se_sys_ioctl+0xf9/0x170
[ 90.627324][ T5853] do_syscall_64+0xfa/0x3b0
[ 90.627352][ T5853] ? lockdep_hardirqs_on+0x9c/0x150
[ 90.627373][ T5853] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.627392][ T5853] ? clear_bhb_loop+0x60/0xb0
[ 90.627418][ T5853] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.627437][ T5853] RIP: 0033:0x7f48872093e9
[ 90.627463][ T5853] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
[ 90.627479][ T5853] RSP: 002b:00007ffe016f11c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 90.627500][ T5853] RAX: ffffffffffffffda RBX: 00007ffe016f1398 RCX: 00007f48872093e9
[ 90.627514][ T5853] RDX: 0000200000000280 RSI: 0000000040946400 RDI: 0000000000000003
[ 90.627526][ T5853] RBP: 00007f488727c610 R08: 0000000000000000 R09: 00007ffe016f1398
[ 90.627538][ T5853] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 90.627549][ T5853] R13: 00007ffe016f1388 R14: 0000000000000001 R15: 0000000000000001
[ 90.627580][ T5853]
[ 90.627588][ T5853] ---[ end trace ]---
[ 90.834168][ T5853] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 90.841362][ T5853] CPU: 1 UID: 0 PID: 5853 Comm: syz-executor321 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full)
[ 90.853243][ T5853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 90.863294][ T5853] Call Trace:
[ 90.866578][ T5853]
[ 90.869506][ T5853] dump_stack_lvl+0x99/0x250
[ 90.874107][ T5853] ? __asan_memcpy+0x40/0x70
[ 90.878699][ T5853] ? __pfx_dump_stack_lvl+0x10/0x10
[ 90.883990][ T5853] ? __pfx__printk+0x10/0x10
[ 90.888607][ T5853] vpanic+0x281/0x750
[ 90.892591][ T5853] ? __pfx_vpanic+0x10/0x10
[ 90.897102][ T5853] panic+0xb9/0xc0
[ 90.900821][ T5853] ? __pfx_panic+0x10/0x10
[ 90.905237][ T5853] ? __pfx__printk+0x10/0x10
[ 90.909837][ T5853] check_panic_on_warn+0x89/0xb0
[ 90.914773][ T5853] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 90.921202][ T5853] pcl812_attach+0x1b9e/0x2300
[ 90.925984][ T5853] comedi_device_attach+0x51d/0x670
[ 90.931201][ T5853] comedi_unlocked_ioctl+0x686/0xf40
[ 90.936513][ T5853] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 90.942344][ T5853] ? _raw_spin_lock_irq+0xae/0xf0
[ 90.947513][ T5853] ? __pfx_ptrace_notify+0x10/0x10
[ 90.952655][ T5853] ? bpf_lsm_file_ioctl+0x9/0x20
[ 90.957596][ T5853] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 90.963424][ T5853] __se_sys_ioctl+0xf9/0x170
[ 90.968023][ T5853] do_syscall_64+0xfa/0x3b0
[ 90.972522][ T5853] ? lockdep_hardirqs_on+0x9c/0x150
[ 90.977729][ T5853] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.983794][ T5853] ? clear_bhb_loop+0x60/0xb0
[ 90.988489][ T5853] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 90.994380][ T5853] RIP: 0033:0x7f48872093e9
[ 90.998797][ T5853] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
[ 91.018399][ T5853] RSP: 002b:00007ffe016f11c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 91.026824][ T5853] RAX: ffffffffffffffda RBX: 00007ffe016f1398 RCX: 00007f48872093e9
[ 91.034792][ T5853] RDX: 0000200000000280 RSI: 0000000040946400 RDI: 0000000000000003
[ 91.042760][ T5853] RBP: 00007f488727c610 R08: 0000000000000000 R09: 00007ffe016f1398
[ 91.050773][ T5853] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 91.058913][ T5853] R13: 00007ffe016f1388 R14: 0000000000000001 R15: 0000000000000001
[ 91.066893][ T5853]
[ 91.070307][ T5853] Kernel Offset: disabled
[ 91.074663][ T5853] Rebooting in 86400 seconds..