./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1025879223 <...> Warning: Permanently added '10.128.1.255' (ED25519) to the list of known hosts. execve("./syz-executor1025879223", ["./syz-executor1025879223"], 0x7ffc26f24810 /* 10 vars */) = 0 brk(NULL) = 0x55558cd89000 brk(0x55558cd89d00) = 0x55558cd89d00 arch_prctl(ARCH_SET_FS, 0x55558cd89380) = 0 set_tid_address(0x55558cd89650) = 5869 set_robust_list(0x55558cd89660, 24) = 0 rseq(0x55558cd89ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1025879223", 4096) = 28 getrandom("\x05\x6e\x06\x41\xf5\xe4\xae\x92", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558cd89d00 brk(0x55558cdaad00) = 0x55558cdaad00 brk(0x55558cdab000) = 0x55558cdab000 mprotect(0x7f695ea6b000, 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 5870 attached [pid 5870] set_robust_list(0x55558cd89660, 24 [pid 5869] <... clone resumed>, child_tidptr=0x55558cd89650) = 5870 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5870] setpgid(0, 0) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5870] write(3, "1000", 4) = 4 [pid 5870] close(3) = 0 [pid 5870] write(1, "executing program\n", 18executing program ) = 18 [pid 5870] openat(AT_FDCWD, "/dev/comedi3", O_RDONLY|O_APPEND) = 3 [ 75.068987][ T5870] comedi comedi3: c6xdigio: I/O port conflict (0x5,3) [ 75.076278][ T5870] ------------[ cut here ]------------ [ 75.082315][ T5870] Unexpected driver unregister! [ 75.087622][ T5870] WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0, CPU#0: syz-executor102/5870 [ 75.098257][ T5870] Modules linked in: [ 75.102327][ T5870] CPU: 0 UID: 0 PID: 5870 Comm: syz-executor102 Not tainted 6.16.0-next-20250805-syzkaller #0 PREEMPT(full) [ 75.114537][ T5870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 75.124863][ T5870] RIP: 0010:driver_unregister+0x94/0xb0 [ 75.130464][ T5870] Code: 27 56 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 d1 5c b6 fb eb 05 e8 ca 5c b6 fb 90 48 c7 c7 40 53 2b 8c e8 7d f4 79 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f c3 cc cc cc cc cc cc cc cc cc cc cc cc [ 75.150356][ T5870] RSP: 0018:ffffc90004027a40 EFLAGS: 00010246 [ 75.156530][ T5870] RAX: 5b134a2d7f50bf00 RBX: ffffffff8f7fd3c0 RCX: ffff88802e0e9e00 [ 75.164562][ T5870] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 75.172591][ T5870] RBP: 0000000000000001 R08: ffffc90004027767 R09: 1ffff92000804eec [ 75.180649][ T5870] R10: dffffc0000000000 R11: fffff52000804eed R12: ffff88814c1ff038 [ 75.188632][ T5870] R13: ffffffff8f7fd310 R14: 0000000000000000 R15: dffffc0000000000 [ 75.196690][ T5870] FS: 000055558cd89380(0000) GS:ffff8881257e9000(0000) knlGS:0000000000000000 [ 75.205697][ T5870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.212361][ T5870] CR2: 00007f695ea6f0d0 CR3: 00000000798d8000 CR4: 00000000003526f0 [ 75.220379][ T5870] Call Trace: [ 75.223664][ T5870] [ 75.226588][ T5870] comedi_device_detach_locked+0x175/0x750 [ 75.232624][ T5870] comedi_device_attach+0x5d4/0x720 [ 75.237939][ T5870] comedi_unlocked_ioctl+0x5ff/0x1020 [ 75.243451][ T5870] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.249285][ T5870] ? _raw_spin_lock_irq+0xae/0xf0 [ 75.254442][ T5870] ? __pfx_ptrace_notify+0x10/0x10 [ 75.259914][ T5870] ? bpf_lsm_file_ioctl+0x9/0x20 [ 75.265074][ T5870] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.271220][ T5870] __se_sys_ioctl+0xf9/0x170 [ 75.275908][ T5870] do_syscall_64+0xfa/0x3b0 [ 75.280473][ T5870] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.285692][ T5870] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.291821][ T5870] ? clear_bhb_loop+0x60/0xb0 [ 75.296509][ T5870] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.302622][ T5870] RIP: 0033:0x7f695e9f8b39 [ 75.307071][ T5870] 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 [ 75.326743][ T5870] RSP: 002b:00007fffbe386ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.335228][ T5870] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695e9f8b39 [ 75.343271][ T5870] RDX: 00002000000000c0 RSI: 0000000040946400 RDI: 0000000000000003 [ 75.351294][ T5870] RBP: 00007f695ea6b5f0 R08: 0000000000000000 R09: 0000000000000006 [ 75.359277][ T5870] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 75.367327][ T5870] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 75.375352][ T5870] [ 75.378377][ T5870] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 75.385641][ T5870] CPU: 0 UID: 0 PID: 5870 Comm: syz-executor102 Not tainted 6.16.0-next-20250805-syzkaller #0 PREEMPT(full) [ 75.397259][ T5870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 75.407308][ T5870] Call Trace: [ 75.410581][ T5870] [ 75.413495][ T5870] dump_stack_lvl+0x99/0x250 [ 75.418072][ T5870] ? __asan_memcpy+0x40/0x70 [ 75.422663][ T5870] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.427867][ T5870] ? __pfx__printk+0x10/0x10 [ 75.432551][ T5870] vpanic+0x281/0x750 [ 75.436542][ T5870] ? __pfx_vpanic+0x10/0x10 [ 75.441036][ T5870] ? is_bpf_text_address+0x292/0x2b0 [ 75.446306][ T5870] ? is_bpf_text_address+0x26/0x2b0 [ 75.451496][ T5870] panic+0xb9/0xc0 [ 75.455214][ T5870] ? __pfx_panic+0x10/0x10 [ 75.459662][ T5870] __warn+0x334/0x4c0 [ 75.463635][ T5870] ? driver_unregister+0x94/0xb0 [ 75.468578][ T5870] ? driver_unregister+0x94/0xb0 [ 75.473595][ T5870] report_bug+0x2be/0x4f0 [ 75.477916][ T5870] ? driver_unregister+0x94/0xb0 [ 75.482843][ T5870] ? driver_unregister+0x94/0xb0 [ 75.487826][ T5870] ? driver_unregister+0x96/0xb0 [ 75.492783][ T5870] handle_bug+0x84/0x160 [ 75.497142][ T5870] exc_invalid_op+0x1a/0x50 [ 75.501635][ T5870] asm_exc_invalid_op+0x1a/0x20 [ 75.506472][ T5870] RIP: 0010:driver_unregister+0x94/0xb0 [ 75.512008][ T5870] Code: 27 56 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 d1 5c b6 fb eb 05 e8 ca 5c b6 fb 90 48 c7 c7 40 53 2b 8c e8 7d f4 79 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f c3 cc cc cc cc cc cc cc cc cc cc cc cc [ 75.531774][ T5870] RSP: 0018:ffffc90004027a40 EFLAGS: 00010246 [ 75.537834][ T5870] RAX: 5b134a2d7f50bf00 RBX: ffffffff8f7fd3c0 RCX: ffff88802e0e9e00 [ 75.545792][ T5870] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 75.553760][ T5870] RBP: 0000000000000001 R08: ffffc90004027767 R09: 1ffff92000804eec [ 75.561741][ T5870] R10: dffffc0000000000 R11: fffff52000804eed R12: ffff88814c1ff038 [ 75.569722][ T5870] R13: ffffffff8f7fd310 R14: 0000000000000000 R15: dffffc0000000000 [ 75.577707][ T5870] comedi_device_detach_locked+0x175/0x750 [ 75.583520][ T5870] comedi_device_attach+0x5d4/0x720 [ 75.588764][ T5870] comedi_unlocked_ioctl+0x5ff/0x1020 [ 75.594148][ T5870] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.599961][ T5870] ? _raw_spin_lock_irq+0xae/0xf0 [ 75.605001][ T5870] ? __pfx_ptrace_notify+0x10/0x10 [ 75.610110][ T5870] ? bpf_lsm_file_ioctl+0x9/0x20 [ 75.615064][ T5870] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 75.620859][ T5870] __se_sys_ioctl+0xf9/0x170 [ 75.625440][ T5870] do_syscall_64+0xfa/0x3b0 [ 75.629937][ T5870] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.635140][ T5870] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.641228][ T5870] ? clear_bhb_loop+0x60/0xb0 [ 75.645933][ T5870] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.651831][ T5870] RIP: 0033:0x7f695e9f8b39 [ 75.656251][ T5870] 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 [ 75.675853][ T5870] RSP: 002b:00007fffbe386ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.684268][ T5870] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f695e9f8b39 [ 75.692230][ T5870] RDX: 00002000000000c0 RSI: 0000000040946400 RDI: 0000000000000003 [ 75.700458][ T5870] RBP: 00007f695ea6b5f0 R08: 0000000000000000 R09: 0000000000000006 [ 75.708503][ T5870] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 75.716477][ T5870] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 75.724476][ T5870] [ 75.727634][ T5870] Kernel Offset: disabled [ 75.731948][ T5870] Rebooting in 86400 seconds..