./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor332653191 <...> Warning: Permanently added '10.128.1.209' (ED25519) to the list of known hosts. execve("./syz-executor332653191", ["./syz-executor332653191"], 0x7fffa12940d0 /* 10 vars */) = 0 brk(NULL) = 0x55555930f000 brk(0x55555930fd00) = 0x55555930fd00 arch_prctl(ARCH_SET_FS, 0x55555930f380) = 0 set_tid_address(0x55555930f650) = 5871 set_robust_list(0x55555930f660, 24) = 0 rseq(0x55555930fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor332653191", 4096) = 27 getrandom("\x5e\x44\x1d\xb2\x1a\x3f\x27\x6e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555930fd00 brk(0x555559330d00) = 0x555559330d00 brk(0x555559331000) = 0x555559331000 mprotect(0x7f957e1a0000, 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 5872 attached [pid 5872] set_robust_list(0x55555930f660, 24 [pid 5871] <... clone resumed>, child_tidptr=0x55555930f650) = 5872 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5872] setpgid(0, 0) = 0 [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5872] write(3, "1000", 4) = 4 [pid 5872] close(3) = 0 executing program [pid 5872] write(1, "executing program\n", 18) = 18 [pid 5872] openat(AT_FDCWD, "/dev/comedi0", O_RDONLY|O_EXCL|O_LARGEFILE) = 3 [ 91.868443][ T1775] cfg80211: failed to load regulatory.db [ 91.922554][ T5872] comedi comedi0: c6xdigio: a I/O base address must be specified [ 91.930586][ T5872] ------------[ cut here ]------------ [ 91.936216][ T5872] Unexpected driver unregister! [ 91.942313][ T5872] WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0, CPU#1: syz-executor332/5872 [ 91.952986][ T5872] Modules linked in: [ 91.957176][ T5872] CPU: 1 UID: 0 PID: 5872 Comm: syz-executor332 Not tainted 6.16.0-next-20250808-syzkaller #0 PREEMPT(full) [ 91.968788][ T5872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 91.978989][ T5872] RIP: 0010:driver_unregister+0x94/0xb0 [ 91.984586][ T5872] Code: 1e 56 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 81 49 b6 fb eb 05 e8 7a 49 b6 fb 90 48 c7 c7 20 98 2b 8c e8 dd df 79 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 7e 7e 7b 05 cc cc cc cc cc cc cc cc [ 92.004704][ T5872] RSP: 0018:ffffc90004217a40 EFLAGS: 00010246 [ 92.011010][ T5872] RAX: 721b20a3f3113b00 RBX: ffffffff8f809b80 RCX: ffff88807decda00 [ 92.019049][ T5872] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 [ 92.027177][ T5872] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 [ 92.035184][ T5872] R10: dffffc0000000000 R11: fffffbfff1c7a1ec R12: ffff88802ec16838 [ 92.043354][ T5872] R13: ffffffff8f809ad0 R14: 0000000000000000 R15: dffffc0000000000 [ 92.051421][ T5872] FS: 000055555930f380(0000) GS:ffff8881258db000(0000) knlGS:0000000000000000 [ 92.060617][ T5872] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.067280][ T5872] CR2: 00000000005fdeb8 CR3: 0000000075108000 CR4: 00000000003526f0 [ 92.075292][ T5872] Call Trace: [ 92.078652][ T5872] [ 92.081624][ T5872] comedi_device_detach_locked+0x175/0x750 [ 92.087521][ T5872] comedi_device_attach+0x5d4/0x720 [ 92.092784][ T5872] comedi_unlocked_ioctl+0x5ff/0x1020 [ 92.098331][ T5872] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 92.104190][ T5872] ? _raw_spin_lock_irq+0xae/0xf0 [ 92.109359][ T5872] ? __pfx_ptrace_notify+0x10/0x10 [ 92.114525][ T5872] ? bpf_lsm_file_ioctl+0x9/0x20 [ 92.119530][ T5872] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 92.125372][ T5872] __se_sys_ioctl+0xfc/0x170 [ 92.130053][ T5872] do_syscall_64+0xfa/0x3b0 [ 92.134612][ T5872] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.139946][ T5872] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.146065][ T5872] ? clear_bhb_loop+0x60/0xb0 [ 92.150829][ T5872] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.156790][ T5872] RIP: 0033:0x7f957e12db39 [ 92.161223][ T5872] 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 [ 92.180913][ T5872] RSP: 002b:00007ffd9f669ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 92.189412][ T5872] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f957e12db39 [ 92.197464][ T5872] RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003 [ 92.205568][ T5872] RBP: 00007f957e1a05f0 R08: 0000000000000006 R09: 0000000000000006 [ 92.213634][ T5872] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 92.221682][ T5872] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 92.229756][ T5872] [ 92.232914][ T5872] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 92.240310][ T5872] CPU: 1 UID: 0 PID: 5872 Comm: syz-executor332 Not tainted 6.16.0-next-20250808-syzkaller #0 PREEMPT(full) [ 92.251875][ T5872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 92.261982][ T5872] Call Trace: [ 92.265285][ T5872] [ 92.268242][ T5872] dump_stack_lvl+0x99/0x250 [ 92.273014][ T5872] ? __asan_memcpy+0x40/0x70 [ 92.277660][ T5872] ? __pfx_dump_stack_lvl+0x10/0x10 [ 92.282887][ T5872] ? __pfx__printk+0x10/0x10 [ 92.287515][ T5872] vpanic+0x281/0x750 [ 92.291519][ T5872] ? __pfx_vpanic+0x10/0x10 [ 92.296036][ T5872] ? is_bpf_text_address+0x292/0x2b0 [ 92.301422][ T5872] ? is_bpf_text_address+0x26/0x2b0 [ 92.306637][ T5872] panic+0xb9/0xc0 [ 92.310383][ T5872] ? __pfx_panic+0x10/0x10 [ 92.314831][ T5872] __warn+0x334/0x4c0 [ 92.318827][ T5872] ? driver_unregister+0x94/0xb0 [ 92.323783][ T5872] ? driver_unregister+0x94/0xb0 [ 92.328759][ T5872] report_bug+0x2be/0x4f0 [ 92.333110][ T5872] ? driver_unregister+0x94/0xb0 [ 92.338185][ T5872] ? driver_unregister+0x94/0xb0 [ 92.343160][ T5872] ? driver_unregister+0x96/0xb0 [ 92.348124][ T5872] handle_bug+0x84/0x160 [ 92.352423][ T5872] exc_invalid_op+0x1a/0x50 [ 92.356942][ T5872] asm_exc_invalid_op+0x1a/0x20 [ 92.361809][ T5872] RIP: 0010:driver_unregister+0x94/0xb0 [ 92.367424][ T5872] Code: 1e 56 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 81 49 b6 fb eb 05 e8 7a 49 b6 fb 90 48 c7 c7 20 98 2b 8c e8 dd df 79 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 7e 7e 7b 05 cc cc cc cc cc cc cc cc [ 92.387067][ T5872] RSP: 0018:ffffc90004217a40 EFLAGS: 00010246 [ 92.393172][ T5872] RAX: 721b20a3f3113b00 RBX: ffffffff8f809b80 RCX: ffff88807decda00 [ 92.401161][ T5872] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 [ 92.409161][ T5872] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 [ 92.417247][ T5872] R10: dffffc0000000000 R11: fffffbfff1c7a1ec R12: ffff88802ec16838 [ 92.425242][ T5872] R13: ffffffff8f809ad0 R14: 0000000000000000 R15: dffffc0000000000 [ 92.433262][ T5872] comedi_device_detach_locked+0x175/0x750 [ 92.439201][ T5872] comedi_device_attach+0x5d4/0x720 [ 92.444434][ T5872] comedi_unlocked_ioctl+0x5ff/0x1020 [ 92.449848][ T5872] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 92.455711][ T5872] ? _raw_spin_lock_irq+0xae/0xf0 [ 92.460790][ T5872] ? __pfx_ptrace_notify+0x10/0x10 [ 92.465941][ T5872] ? bpf_lsm_file_ioctl+0x9/0x20 [ 92.470897][ T5872] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 92.476741][ T5872] __se_sys_ioctl+0xfc/0x170 [ 92.481375][ T5872] do_syscall_64+0xfa/0x3b0 [ 92.485894][ T5872] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.491128][ T5872] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.497209][ T5872] ? clear_bhb_loop+0x60/0xb0 [ 92.501908][ T5872] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.507854][ T5872] RIP: 0033:0x7f957e12db39 [ 92.512304][ T5872] 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 [ 92.531922][ T5872] RSP: 002b:00007ffd9f669ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 92.540361][ T5872] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f957e12db39 [ 92.548348][ T5872] RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003 [ 92.556335][ T5872] RBP: 00007f957e1a05f0 R08: 0000000000000006 R09: 0000000000000006 [ 92.564326][ T5872] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 92.572314][ T5872] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 92.580318][ T5872] [ 92.583491][ T5872] Kernel Offset: disabled [ 92.587827][ T5872] Rebooting in 86400 seconds..