Extracting prog: 1m25.990510142s
Minimizing prog: 5m7.645850377s
Simplifying prog options: 4m48.132471809s
Extracting C: 51.661623666s
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}}): mount$bind-openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
mount$bind(&(0x7f0000000040)='.\x00', 0x0, 0x0, 0x2a05004, 0x0)
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
program crashed: SYZFAIL: posix_spawnp failed
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=47.848582239s, {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$bind-openat$binfmt_register
detailed listing:
executing program 0:
mount$bind(&(0x7f0000000040)='.\x00', 0x0, 0x0, 0x2a05004, 0x0)
openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)

program did not crash
testing program (duration=47.848582239s, {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$bind-write$binfmt_register
detailed listing:
executing program 0:
mount$bind(&(0x7f0000000040)='.\x00', 0x0, 0x0, 0x2a05004, 0x0)
write$binfmt_register(0xffffffffffffffff, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program did not crash
testing program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
testing program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program did not crash
testing program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
program did not crash
simplifying guilty program options
testing program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
extracting C reproducer
testing compiled C program (duration=47.848582239s, {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}}): openat$binfmt_register-write$binfmt_register
program did not crash
testing program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program did not crash
testing program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
extracting C reproducer
testing compiled C program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
program did not crash
testing program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
testing program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
testing program (duration=47.848582239s, {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: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}}): openat$binfmt_register-write$binfmt_register
detailed listing:
executing program 0:
r0 = openat$binfmt_register(0xffffffffffffff9c, &(0x7f0000000340), 0x1, 0x0)
write$binfmt_register(r0, &(0x7f0000000200)={0x3a, 'syz3', 0x3a, 'M', 0x3a, 0xaa, 0x3a, '\x02', 0x3a, ']', 0x3a, './file0/file0'}, 0x2f)

program crashed: SYZFAIL: posix_spawnp failed
validation run: crashed=true
reproducing took 15m7.275224577s
repro crashed as (corrupted=false):
2025/11/29 20:51:48 executed programs: 276
2025/11/29 20:51:53 executed programs: 576
SYZFAIL: posix_spawnp failed
 (errno 2: No such file or directory)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:35719->127.0.0.1:60918: read: connection reset by peer

final repro crashed as (corrupted=false):
2025/11/29 20:51:48 executed programs: 276
2025/11/29 20:51:53 executed programs: 576
SYZFAIL: posix_spawnp failed
 (errno 2: No such file or directory)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:35719->127.0.0.1:60918: read: connection reset by peer