./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2955831112 <...> Warning: Permanently added '10.128.1.191' (ED25519) to the list of known hosts. execve("./syz-executor2955831112", ["./syz-executor2955831112"], 0x7ffd3695d740 /* 10 vars */) = 0 brk(NULL) = 0x55557a499000 brk(0x55557a499d00) = 0x55557a499d00 arch_prctl(ARCH_SET_FS, 0x55557a499380) = 0 set_tid_address(0x55557a499650) = 5840 set_robust_list(0x55557a499660, 24) = 0 rseq(0x55557a499ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2955831112", 4096) = 28 getrandom("\xe1\xe0\x43\xe1\x10\x72\x50\xfe", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557a499d00 brk(0x55557a4bad00) = 0x55557a4bad00 brk(0x55557a4bb000) = 0x55557a4bb000 mprotect(0x7f6abe0f2000, 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 5841 attached [pid 5841] set_robust_list(0x55557a499660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x55557a499650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] openat(AT_FDCWD, "/dev/comedi0", O_WRONLY|O_SYNC) = 3 [ 90.843810][ T5841] comedi comedi0: c6xdigio: a I/O base address must be specified [ 90.852227][ T5841] ------------[ cut here ]------------ [ 90.857738][ T5841] Unexpected driver unregister! [ 90.863267][ T5841] WARNING: CPU: 1 PID: 5841 at drivers/base/driver.c:273 driver_unregister+0x94/0xb0 [ 90.872861][ T5841] Modules linked in: [ 90.876812][ T5841] CPU: 1 UID: 0 PID: 5841 Comm: syz-executor295 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full) [ 90.889334][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 90.899435][ T5841] RIP: 0010:driver_unregister+0x94/0xb0 [ 90.905053][ T5841] Code: da 6b fc 48 89 df 5b 41 5e 41 5f e9 d6 55 ff ff e8 91 f7 d0 fb eb 05 e8 8a f7 d0 fb 90 48 c7 c7 e0 94 08 8c e8 1d e7 94 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 ce 34 7a 05 cc cc cc cc cc cc cc cc [ 90.924766][ T5841] RSP: 0018:ffffc900041afa38 EFLAGS: 00010246 [ 90.930926][ T5841] RAX: eb36ab30dc78e200 RBX: ffffffff8f3c9d40 RCX: ffff88802d005a00 [ 90.938953][ T5841] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 [ 90.947014][ T5841] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 [ 90.955041][ T5841] R10: dffffc0000000000 R11: fffffbfff1bfaa6c R12: ffff88814c1a3800 [ 90.963089][ T5841] R13: ffff88814c1a3920 R14: 0000000000000000 R15: dffffc0000000000 [ 90.971139][ T5841] FS: 000055557a499380(0000) GS:ffff888125d57000(0000) knlGS:0000000000000000 [ 90.980094][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.986786][ T5841] CR2: 00000000005fdeb8 CR3: 0000000077526000 CR4: 00000000003526f0 [ 90.994845][ T5841] Call Trace: [ 90.998159][ T5841] [ 91.001192][ T5841] comedi_device_detach+0x134/0x720 [ 91.006451][ T5841] ? comedi_request_region+0x11a/0x180 [ 91.012003][ T5841] comedi_device_attach+0x568/0x670 [ 91.017239][ T5841] comedi_unlocked_ioctl+0x686/0xfc0 [ 91.022599][ T5841] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 91.028440][ T5841] ? __pfx_smack_log+0x10/0x10 [ 91.033374][ T5841] ? smk_access+0x14c/0x4e0 [ 91.037921][ T5841] ? smk_tskacc+0x2fc/0x370 [ 91.042561][ T5841] ? smack_file_ioctl+0x24a/0x340 [ 91.047710][ T5841] ? __pfx_smack_file_ioctl+0x10/0x10 [ 91.053183][ T5841] ? __pfx_ptrace_notify+0x10/0x10 [ 91.058336][ T5841] ? bpf_lsm_file_ioctl+0x9/0x20 [ 91.063396][ T5841] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 91.069320][ T5841] __se_sys_ioctl+0xfc/0x170 [ 91.073989][ T5841] do_syscall_64+0xfa/0x3b0 [ 91.078531][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.083812][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.089902][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 91.094632][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.100612][ T5841] RIP: 0033:0x7f6abe07fb39 [ 91.105138][ T5841] 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 [ 91.124879][ T5841] RSP: 002b:00007ffee02d0ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 91.133382][ T5841] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6abe07fb39 [ 91.141442][ T5841] RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003 [ 91.149446][ T5841] RBP: 00007f6abe0f25f0 R08: 0000000000000006 R09: 0000000000000006 [ 91.157496][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 91.165543][ T5841] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 91.173593][ T5841] [ 91.176616][ T5841] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 91.183895][ T5841] CPU: 1 UID: 0 PID: 5841 Comm: syz-executor295 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full) [ 91.196305][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 91.206402][ T5841] Call Trace: [ 91.209695][ T5841] [ 91.212629][ T5841] dump_stack_lvl+0x99/0x250 [ 91.217226][ T5841] ? __asan_memcpy+0x40/0x70 [ 91.221825][ T5841] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.227030][ T5841] ? __pfx__printk+0x10/0x10 [ 91.231630][ T5841] panic+0x2db/0x790 [ 91.235527][ T5841] ? __pfx_panic+0x10/0x10 [ 91.239952][ T5841] __warn+0x31b/0x4b0 [ 91.243932][ T5841] ? driver_unregister+0x94/0xb0 [ 91.248890][ T5841] ? driver_unregister+0x94/0xb0 [ 91.253824][ T5841] report_bug+0x2be/0x4f0 [ 91.258152][ T5841] ? driver_unregister+0x94/0xb0 [ 91.263090][ T5841] ? driver_unregister+0x94/0xb0 [ 91.268022][ T5841] ? driver_unregister+0x96/0xb0 [ 91.273145][ T5841] handle_bug+0x84/0x160 [ 91.277387][ T5841] exc_invalid_op+0x1a/0x50 [ 91.281890][ T5841] asm_exc_invalid_op+0x1a/0x20 [ 91.286741][ T5841] RIP: 0010:driver_unregister+0x94/0xb0 [ 91.292287][ T5841] Code: da 6b fc 48 89 df 5b 41 5e 41 5f e9 d6 55 ff ff e8 91 f7 d0 fb eb 05 e8 8a f7 d0 fb 90 48 c7 c7 e0 94 08 8c e8 1d e7 94 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 ce 34 7a 05 cc cc cc cc cc cc cc cc [ 91.311903][ T5841] RSP: 0018:ffffc900041afa38 EFLAGS: 00010246 [ 91.317977][ T5841] RAX: eb36ab30dc78e200 RBX: ffffffff8f3c9d40 RCX: ffff88802d005a00 [ 91.325953][ T5841] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 [ 91.333934][ T5841] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 [ 91.341917][ T5841] R10: dffffc0000000000 R11: fffffbfff1bfaa6c R12: ffff88814c1a3800 [ 91.349896][ T5841] R13: ffff88814c1a3920 R14: 0000000000000000 R15: dffffc0000000000 [ 91.357917][ T5841] ? driver_unregister+0x93/0xb0 [ 91.362871][ T5841] comedi_device_detach+0x134/0x720 [ 91.368103][ T5841] ? comedi_request_region+0x11a/0x180 [ 91.373607][ T5841] comedi_device_attach+0x568/0x670 [ 91.378845][ T5841] comedi_unlocked_ioctl+0x686/0xfc0 [ 91.384159][ T5841] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 91.389992][ T5841] ? __pfx_smack_log+0x10/0x10 [ 91.394775][ T5841] ? smk_access+0x14c/0x4e0 [ 91.399307][ T5841] ? smk_tskacc+0x2fc/0x370 [ 91.403842][ T5841] ? smack_file_ioctl+0x24a/0x340 [ 91.408876][ T5841] ? __pfx_smack_file_ioctl+0x10/0x10 [ 91.414262][ T5841] ? __pfx_ptrace_notify+0x10/0x10 [ 91.419395][ T5841] ? bpf_lsm_file_ioctl+0x9/0x20 [ 91.424344][ T5841] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 91.430159][ T5841] __se_sys_ioctl+0xfc/0x170 [ 91.434773][ T5841] do_syscall_64+0xfa/0x3b0 [ 91.439293][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.444510][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.450587][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 91.455285][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.461187][ T5841] RIP: 0033:0x7f6abe07fb39 [ 91.465610][ T5841] 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 [ 91.485309][ T5841] RSP: 002b:00007ffee02d0ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 91.493746][ T5841] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6abe07fb39 [ 91.501728][ T5841] RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003 [ 91.509704][ T5841] RBP: 00007f6abe0f25f0 R08: 0000000000000006 R09: 0000000000000006 [ 91.517681][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 91.525660][ T5841] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 91.533651][ T5841] [ 91.536954][ T5841] Kernel Offset: disabled [ 91.541285][ T5841] Rebooting in 86400 seconds..