./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1472156861
<...>
Warning: Permanently added '10.128.0.32' (ED25519) to the list of known hosts.
execve("./syz-executor1472156861", ["./syz-executor1472156861"], 0x7ffef23936a0 /* 10 vars */) = 0
brk(NULL) = 0x555575ac8000
brk(0x555575ac8d00) = 0x555575ac8d00
arch_prctl(ARCH_SET_FS, 0x555575ac8380) = 0
set_tid_address(0x555575ac8650) = 5869
set_robust_list(0x555575ac8660, 24) = 0
rseq(0x555575ac8ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1472156861", 4096) = 28
getrandom("\xab\xaf\x5f\x02\x4c\x7e\x37\x71", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555575ac8d00
brk(0x555575ae9d00) = 0x555575ae9d00
brk(0x555575aea000) = 0x555575aea000
mprotect(0x7ff906f3a000, 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
executing program
write(1, "executing program\n", 18) = 18
openat(AT_FDCWD, "/dev/comedi0", O_RDONLY|O_EXCL|O_LARGEFILE) = 3
[ 89.264705][ T5869] comedi comedi0: c6xdigio: a I/O base address must be specified
[ 89.273658][ T5869] ------------[ cut here ]------------
[ 89.280110][ T5869] Unexpected driver unregister!
[ 89.285895][ T5869] WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0, CPU#0: syz-executor147/5869
[ 89.296703][ T5869] Modules linked in:
[ 89.300752][ T5869] CPU: 0 UID: 0 PID: 5869 Comm: syz-executor147 Not tainted 6.16.0-next-20250808-syzkaller #0 PREEMPT(full)
[ 89.312534][ T5869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 89.322706][ T5869] RIP: 0010:driver_unregister+0x94/0xb0
[ 89.328326][ T5869] 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
[ 89.348098][ T5869] RSP: 0018:ffffc90004037a40 EFLAGS: 00010246
[ 89.354204][ T5869] RAX: afb16c5807875200 RBX: ffffffff8f809b80 RCX: ffff88807ad25a00
[ 89.362893][ T5869] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
[ 89.370961][ T5869] RBP: 0000000000000001 R08: ffff8880b8624253 R09: 1ffff110170c484a
[ 89.379018][ T5869] R10: dffffc0000000000 R11: ffffed10170c484b R12: ffff88802eb36038
[ 89.387143][ T5869] R13: ffffffff8f809ad0 R14: 0000000000000000 R15: dffffc0000000000
[ 89.395192][ T5869] FS: 0000555575ac8380(0000) GS:ffff8881257db000(0000) knlGS:0000000000000000
[ 89.404209][ T5869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 89.410898][ T5869] CR2: 00000000005fdeb8 CR3: 0000000074a88000 CR4: 00000000003526f0
[ 89.418956][ T5869] Call Trace:
[ 89.422385][ T5869]
[ 89.425459][ T5869] comedi_device_detach_locked+0x175/0x750
[ 89.431481][ T5869] comedi_device_attach+0x5d4/0x720
[ 89.436838][ T5869] comedi_unlocked_ioctl+0x5ff/0x1020
[ 89.442441][ T5869] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 89.449373][ T5869] ? _raw_spin_lock_irq+0xae/0xf0
[ 89.454503][ T5869] ? __pfx_ptrace_notify+0x10/0x10
[ 89.459716][ T5869] ? bpf_lsm_file_ioctl+0x9/0x20
[ 89.464670][ T5869] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 89.470533][ T5869] __se_sys_ioctl+0xfc/0x170
[ 89.475234][ T5869] do_syscall_64+0xfa/0x3b0
[ 89.479795][ T5869] ? lockdep_hardirqs_on+0x9c/0x150
[ 89.485119][ T5869] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.491240][ T5869] ? clear_bhb_loop+0x60/0xb0
[ 89.495969][ T5869] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.501908][ T5869] RIP: 0033:0x7ff906ec73e9
[ 89.506361][ T5869] 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
[ 89.526050][ T5869] RSP: 002b:00007ffc7d55e4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 89.534618][ T5869] RAX: ffffffffffffffda RBX: 00007ffc7d55e6c8 RCX: 00007ff906ec73e9
[ 89.542692][ T5869] RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003
[ 89.550723][ T5869] RBP: 00007ff906f3a610 R08: 0000000000000000 R09: 00007ffc7d55e6c8
[ 89.558758][ T5869] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 89.566843][ T5869] R13: 00007ffc7d55e6b8 R14: 0000000000000001 R15: 0000000000000001
[ 89.574950][ T5869]
[ 89.578052][ T5869] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 89.585443][ T5869] CPU: 0 UID: 0 PID: 5869 Comm: syz-executor147 Not tainted 6.16.0-next-20250808-syzkaller #0 PREEMPT(full)
[ 89.596982][ T5869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 89.607037][ T5869] Call Trace:
[ 89.610322][ T5869]
[ 89.613247][ T5869] dump_stack_lvl+0x99/0x250
[ 89.617862][ T5869] ? __asan_memcpy+0x40/0x70
[ 89.622476][ T5869] ? __pfx_dump_stack_lvl+0x10/0x10
[ 89.627698][ T5869] ? __pfx__printk+0x10/0x10
[ 89.632408][ T5869] vpanic+0x281/0x750
[ 89.636414][ T5869] ? __pfx_vpanic+0x10/0x10
[ 89.640923][ T5869] ? is_bpf_text_address+0x292/0x2b0
[ 89.646396][ T5869] ? is_bpf_text_address+0x26/0x2b0
[ 89.651689][ T5869] panic+0xb9/0xc0
[ 89.655504][ T5869] ? __pfx_panic+0x10/0x10
[ 89.659921][ T5869] __warn+0x334/0x4c0
[ 89.664209][ T5869] ? driver_unregister+0x94/0xb0
[ 89.669334][ T5869] ? driver_unregister+0x94/0xb0
[ 89.674298][ T5869] report_bug+0x2be/0x4f0
[ 89.678691][ T5869] ? driver_unregister+0x94/0xb0
[ 89.683710][ T5869] ? driver_unregister+0x94/0xb0
[ 89.688639][ T5869] ? driver_unregister+0x96/0xb0
[ 89.693927][ T5869] handle_bug+0x84/0x160
[ 89.698182][ T5869] exc_invalid_op+0x1a/0x50
[ 89.702764][ T5869] asm_exc_invalid_op+0x1a/0x20
[ 89.707603][ T5869] RIP: 0010:driver_unregister+0x94/0xb0
[ 89.713144][ T5869] 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
[ 89.733186][ T5869] RSP: 0018:ffffc90004037a40 EFLAGS: 00010246
[ 89.739256][ T5869] RAX: afb16c5807875200 RBX: ffffffff8f809b80 RCX: ffff88807ad25a00
[ 89.747308][ T5869] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
[ 89.755462][ T5869] RBP: 0000000000000001 R08: ffff8880b8624253 R09: 1ffff110170c484a
[ 89.763596][ T5869] R10: dffffc0000000000 R11: ffffed10170c484b R12: ffff88802eb36038
[ 89.771661][ T5869] R13: ffffffff8f809ad0 R14: 0000000000000000 R15: dffffc0000000000
[ 89.779881][ T5869] comedi_device_detach_locked+0x175/0x750
[ 89.785717][ T5869] comedi_device_attach+0x5d4/0x720
[ 89.790947][ T5869] comedi_unlocked_ioctl+0x5ff/0x1020
[ 89.796320][ T5869] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 89.802219][ T5869] ? _raw_spin_lock_irq+0xae/0xf0
[ 89.807531][ T5869] ? __pfx_ptrace_notify+0x10/0x10
[ 89.812791][ T5869] ? bpf_lsm_file_ioctl+0x9/0x20
[ 89.817731][ T5869] ? __pfx_comedi_unlocked_ioctl+0x10/0x10
[ 89.823554][ T5869] __se_sys_ioctl+0xfc/0x170
[ 89.828162][ T5869] do_syscall_64+0xfa/0x3b0
[ 89.832667][ T5869] ? lockdep_hardirqs_on+0x9c/0x150
[ 89.837949][ T5869] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.844055][ T5869] ? clear_bhb_loop+0x60/0xb0
[ 89.848903][ T5869] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.854945][ T5869] RIP: 0033:0x7ff906ec73e9
[ 89.859398][ T5869] 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
[ 89.879313][ T5869] RSP: 002b:00007ffc7d55e4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 89.887750][ T5869] RAX: ffffffffffffffda RBX: 00007ffc7d55e6c8 RCX: 00007ff906ec73e9
[ 89.895818][ T5869] RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003
[ 89.903908][ T5869] RBP: 00007ff906f3a610 R08: 0000000000000000 R09: 00007ffc7d55e6c8
[ 89.912056][ T5869] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 89.920104][ T5869] R13: 00007ffc7d55e6b8 R14: 0000000000000001 R15: 0000000000000001
[ 89.928452][ T5869]
[ 89.931973][ T5869] Kernel Offset: disabled
[ 89.936297][ T5869] Rebooting in 86400 seconds..