./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor788851726
<...>
Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts.
execve("./syz-executor788851726", ["./syz-executor788851726"], 0x7fff899704f0 /* 10 vars */) = 0
brk(NULL) = 0x555563e2e000
brk(0x555563e2ed00) = 0x555563e2ed00
arch_prctl(ARCH_SET_FS, 0x555563e2e380) = 0
set_tid_address(0x555563e2e650) = 5858
set_robust_list(0x555563e2e660, 24) = 0
rseq(0x555563e2eca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor788851726", 4096) = 27
getrandom("\xd4\xc0\xa8\x87\x0a\x07\xde\x0c", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555563e2ed00
brk(0x555563e4fd00) = 0x555563e4fd00
brk(0x555563e50000) = 0x555563e50000
mprotect(0x7f942f58d000, 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, 0) = 0x200001000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached
, child_tidptr=0x555563e2e650) = 5859
[pid 5859] set_robust_list(0x555563e2e660, 24) = 0
[pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5859] setpgid(0, 0) = 0
[pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5859] write(3, "1000", 4) = 4
[pid 5859] close(3) = 0
executing program
[pid 5859] write(1, "executing program\n", 18) = 18
[pid 5859] openat(AT_FDCWD, "/dev/comedi2", O_RDONLY|O_APPEND|O_LARGEFILE|FASYNC) = 3
[ 73.961881][ T5859] ------------[ cut here ]------------
[ 73.967418][ T5859] UBSAN: shift-out-of-bounds in drivers/comedi/drivers/aio_iiro_16.c:180:9
[ 73.976233][ T5859] shift exponent 8550 is too large for 32-bit type 'int'
[ 73.983316][ T5859] CPU: 0 UID: 0 PID: 5859 Comm: syz-executor788 Not tainted 6.16.0-rc5-next-20250709-syzkaller #0 PREEMPT(full)
[ 73.983335][ T5859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 73.983349][ T5859] Call Trace:
[ 73.983355][ T5859]
[ 73.983360][ T5859] dump_stack_lvl+0x189/0x250
[ 73.983397][ T5859] ? __pfx_dump_stack_lvl+0x10/0x10
[ 73.983415][ T5859] ? __pfx__printk+0x10/0x10
[ 73.983438][ T5859] ? __pfx___request_region_locked+0x10/0x10
[ 73.983459][ T5859] ubsan_epilogue+0xa/0x40
[ 73.983473][ T5859] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 73.983500][ T5859] ? __request_region+0xc2/0xe0
[ 73.983515][ T5859] ? comedi_request_region+0x7b/0x180
[ 73.983532][ T5859] aio_iiro_16_attach+0x5e8/0x790
[ 73.983552][ T5859] comedi_device_attach+0x520/0x670
[ 73.983573][ T5859] comedi_unlocked_ioctl+0x686/0xf40
[ 73.983603][ T5859] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 73.983637][ T5859] ? _raw_spin_lock_irq+0xae/0xf0
[ 73.983679][ T5859] ? __pfx_ptrace_notify+0x10/0x10
[ 73.983703][ T5859] ? bpf_lsm_file_ioctl+0x9/0x20
[ 73.983720][ T5859] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 73.983738][ T5859] __se_sys_ioctl+0xf9/0x170
[ 73.983759][ T5859] do_syscall_64+0xfa/0x3b0
[ 73.983775][ T5859] ? lockdep_hardirqs_on+0x9c/0x150
[ 73.983790][ T5859] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.983803][ T5859] ? clear_bhb_loop+0x60/0xb0
[ 73.983819][ T5859] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.983831][ T5859] RIP: 0033:0x7f942f51ab39
[ 73.983847][ T5859] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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
[ 73.983858][ T5859] RSP: 002b:00007fffc4b48ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 73.983873][ T5859] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f942f51ab39
[ 73.983882][ T5859] RDX: 0000200000000140 RSI: 0000000040946400 RDI: 0000000000000003
[ 73.983891][ T5859] RBP: 00007f942f58d5f0 R08: 0000000000000006 R09: 0000000000000006
[ 73.983899][ T5859] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 73.983907][ T5859] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[ 73.983928][ T5859]
[ 73.983935][ T5859] ---[ end trace ]---
[ 74.207588][ T5859] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 74.214767][ T5859] CPU: 0 UID: 0 PID: 5859 Comm: syz-executor788 Not tainted 6.16.0-rc5-next-20250709-syzkaller #0 PREEMPT(full)
[ 74.226627][ T5859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 74.236661][ T5859] Call Trace:
[ 74.239923][ T5859]
[ 74.242836][ T5859] dump_stack_lvl+0x99/0x250
[ 74.247411][ T5859] ? __asan_memcpy+0x40/0x70
[ 74.251980][ T5859] ? __pfx_dump_stack_lvl+0x10/0x10
[ 74.257159][ T5859] ? __pfx__printk+0x10/0x10
[ 74.261736][ T5859] panic+0x2e2/0x7b0
[ 74.265615][ T5859] ? __pfx_panic+0x10/0x10
[ 74.270009][ T5859] ? _printk+0xcf/0x120
[ 74.274149][ T5859] ? __pfx__printk+0x10/0x10
[ 74.278728][ T5859] check_panic_on_warn+0x89/0xb0
[ 74.283647][ T5859] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 74.290045][ T5859] ? __request_region+0xc2/0xe0
[ 74.294874][ T5859] ? comedi_request_region+0x7b/0x180
[ 74.300224][ T5859] aio_iiro_16_attach+0x5e8/0x790
[ 74.305230][ T5859] comedi_device_attach+0x520/0x670
[ 74.310500][ T5859] comedi_unlocked_ioctl+0x686/0xf40
[ 74.315770][ T5859] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 74.321568][ T5859] ? _raw_spin_lock_irq+0xae/0xf0
[ 74.326602][ T5859] ? __pfx_ptrace_notify+0x10/0x10
[ 74.331699][ T5859] ? bpf_lsm_file_ioctl+0x9/0x20
[ 74.336651][ T5859] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 74.342452][ T5859] __se_sys_ioctl+0xf9/0x170
[ 74.347029][ T5859] do_syscall_64+0xfa/0x3b0
[ 74.351515][ T5859] ? lockdep_hardirqs_on+0x9c/0x150
[ 74.356697][ T5859] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 74.362752][ T5859] ? clear_bhb_loop+0x60/0xb0
[ 74.367424][ T5859] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 74.373293][ T5859] RIP: 0033:0x7f942f51ab39
[ 74.377686][ T5859] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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
[ 74.397270][ T5859] RSP: 002b:00007fffc4b48ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 74.405662][ T5859] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f942f51ab39
[ 74.413611][ T5859] RDX: 0000200000000140 RSI: 0000000040946400 RDI: 0000000000000003
[ 74.421576][ T5859] RBP: 00007f942f58d5f0 R08: 0000000000000006 R09: 0000000000000006
[ 74.429530][ T5859] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 74.437480][ T5859] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[ 74.445439][ T5859]
[ 74.448675][ T5859] Kernel Offset: disabled
[ 74.453006][ T5859] Rebooting in 86400 seconds..