Extracting prog: 55.888138947s
Minimizing prog: 6m48.850435834s
Simplifying prog options: 0s
Extracting C: 31.166583066s
Simplifying C: 10m6.382302838s


extracting reproducer from 24 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program crashed: WARNING in driver_unregister
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=45.19935991s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi
detailed listing:
executing program 0:
openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)

program did not crash
testing program (duration=45.19935991s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
ioctl$COMEDI_DEVCONFIG(0xffffffffffffffff, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program did not crash
testing program (duration=45.19935991s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, 0x0, 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program did not crash
testing program (duration=45.19935991s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.19935991s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
simplifying C reproducer
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing compiled C program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
program crashed: WARNING in driver_unregister
testing program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program crashed: WARNING in driver_unregister
validation run: crashed=true
testing program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program crashed: WARNING in driver_unregister
validation run: crashed=true
testing program (duration=45.19935991s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000100)='/dev/comedi0\x00', 0x88000, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000540)={'c6xdigio\x00', [0x4000109, 0x80008000, 0x86a, 0xa, 0x800, 0x4, 0x1, 0xf, 0x1000, 0x1, 0x8, 0x5, 0x6, 0x1, 0x1138fce9, 0x6, 0xffffffa7, 0x2000001, 0x0, 0x65c, 0x3ff, 0x10004, 0x800, 0xe2df, 0x9, 0x6, 0x4, 0x3, 0x7, 0x5, 0x4080]})

program crashed: WARNING in driver_unregister
validation run: crashed=true
reproducing took 22m57.084384454s
repro crashed as (corrupted=false):
comedi comedi0: c6xdigio: I/O port conflict (0x4000109,3)
------------[ cut here ]------------
Unexpected driver unregister!
WARNING: CPU: 0 PID: 5943 at drivers/base/driver.c:270 driver_unregister+0x92/0xa0 drivers/base/driver.c:270
Modules linked in:
CPU: 0 PID: 5943 Comm: syz.0.16 Not tainted 6.6.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:driver_unregister+0x92/0xa0 drivers/base/driver.c:270
Code: e8 f3 9c db fc 48 89 df 5b 41 5e 41 5f e9 e6 5a ff ff e8 b1 28 4e fc eb 05 e8 aa 28 4e fc 48 c7 c7 40 15 21 8b e8 3e 9d 18 fc <0f> 0b 5b 41 5e 41 5f c3 cc cc cc cc cc cc 66 0f 1f 00 41 57 41 56
RSP: 0018:ffffc9000459fa58 EFLAGS: 00010246
RAX: 2c1ab919fdbc8000 RBX: ffffffff8de9a140 RCX: ffff888028613c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000001 R08: ffffc9000459f767 R09: 1ffff920008b3eec
R10: dffffc0000000000 R11: fffff520008b3eed R12: ffff88802c28c000
R13: ffff88802c28c120 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055557a115500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c35ffff CR3: 000000007689b000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 comedi_device_detach+0x131/0x6f0 drivers/comedi/drivers.c:206
 comedi_device_attach+0x561/0x660 drivers/comedi/drivers.c:999
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:855 [inline]
 comedi_unlocked_ioctl+0x68d/0xf00 drivers/comedi/comedi_fops.c:2136
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f428578e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa1103d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f42859b5fa0 RCX: 00007f428578e9a9
RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f4285810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42859b5fa0 R14: 00007f42859b5fa0 R15: 0000000000000003
 </TASK>

final repro crashed as (corrupted=false):
comedi comedi0: c6xdigio: I/O port conflict (0x4000109,3)
------------[ cut here ]------------
Unexpected driver unregister!
WARNING: CPU: 0 PID: 5943 at drivers/base/driver.c:270 driver_unregister+0x92/0xa0 drivers/base/driver.c:270
Modules linked in:
CPU: 0 PID: 5943 Comm: syz.0.16 Not tainted 6.6.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:driver_unregister+0x92/0xa0 drivers/base/driver.c:270
Code: e8 f3 9c db fc 48 89 df 5b 41 5e 41 5f e9 e6 5a ff ff e8 b1 28 4e fc eb 05 e8 aa 28 4e fc 48 c7 c7 40 15 21 8b e8 3e 9d 18 fc <0f> 0b 5b 41 5e 41 5f c3 cc cc cc cc cc cc 66 0f 1f 00 41 57 41 56
RSP: 0018:ffffc9000459fa58 EFLAGS: 00010246
RAX: 2c1ab919fdbc8000 RBX: ffffffff8de9a140 RCX: ffff888028613c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000001 R08: ffffc9000459f767 R09: 1ffff920008b3eec
R10: dffffc0000000000 R11: fffff520008b3eed R12: ffff88802c28c000
R13: ffff88802c28c120 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055557a115500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c35ffff CR3: 000000007689b000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 comedi_device_detach+0x131/0x6f0 drivers/comedi/drivers.c:206
 comedi_device_attach+0x561/0x660 drivers/comedi/drivers.c:999
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:855 [inline]
 comedi_unlocked_ioctl+0x68d/0xf00 drivers/comedi/comedi_fops.c:2136
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f428578e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa1103d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f42859b5fa0 RCX: 00007f428578e9a9
RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f4285810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42859b5fa0 R14: 00007f42859b5fa0 R15: 0000000000000003
 </TASK>