Extracting prog: 4m3.437686937s
Minimizing prog: 32m37.927165264s
Simplifying prog options: 15m58.215106891s
Extracting C: 7m27.6102074s
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: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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-mount$fuse-openat$binfmt_register-openat$sysfs-write$binfmt_register
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
openat$sysfs(0xffffffffffffff9c, 0x0, 0x180880, 0xc8)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-mount$fuse-openat$binfmt_register-openat$sysfs-write$binfmt_register
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
openat$sysfs(0xffffffffffffff9c, 0x0, 0x180880, 0xc8)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-mount$fuse-openat$binfmt_register-openat$sysfs
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
openat$sysfs(0xffffffffffffff9c, 0x0, 0x180880, 0xc8)

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-mount$fuse-openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-mount$fuse-write$binfmt_register
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
write$binfmt_register(0xffffffffffffffff, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
openat$fuse(0xffffffffffffff9c, 0x0, 0x42, 0x0)
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, 0x0, 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
extracting C reproducer
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffff9c, &(0x7f0000000040), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f00000000c0)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0x3, 0x3a, '\\x00\x00\x00', 0x3a, '\x99', 0x3a, './file0'}, 0x2e)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
reproducing took 1h1m48.616561195s
repro crashed as (corrupted=false):
2025/12/19 02:31:49 executed programs: 227
2025/12/19 02:31:54 executed programs: 476
SYZFAIL: posix_spawnp failed
 (errno 2: No such file or directory)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

final repro crashed as (corrupted=false):
2025/12/19 02:31:49 executed programs: 227
2025/12/19 02:31:54 executed programs: 476
SYZFAIL: posix_spawnp failed
 (errno 2: No such file or directory)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF