Extracting prog: 2m11.442359674s
Minimizing prog: 17m47.278787901s
Simplifying prog options: 2m5.112031909s
Extracting C: 1m44.767440332s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: mkdir(syz-tmp) failed
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
program did not crash
simplifying guilty program options
testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: posix_spawnp failed
a never seen crash title: SYZFAIL: posix_spawnp failed, ignore
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: failed to mkdtemp
a never seen crash title: SYZFAIL: failed to mkdtemp, ignore
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: failed to mkdtemp
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: failed to mkdtemp
validation run: crashed=true
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mysys\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./mysys\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./mysys/bus/pci/devices/0000:00:03.0/driver/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f0000000580)='0000:00:03.0\x00', 0xd)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
reproducing took 29m10.632542949s
repro crashed as (corrupted=false):
2026/07/25 01:06:12 executed programs: 2709
SYZFAIL: posix_spawnp failed
 (errno 5: Input/output error)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:38651->127.0.0.1:41892: read: connection reset by peer

final repro crashed as (corrupted=false):
2026/07/25 01:06:12 executed programs: 2709
SYZFAIL: posix_spawnp failed
 (errno 5: Input/output error)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:38651->127.0.0.1:41892: read: connection reset by peer