Extracting prog: 2m21.142617869s
Minimizing prog: 58.438µs
Simplifying prog options: 5m45.417179612s
Extracting C: 1m36.75681084s
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:namespace 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}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): socket$nl_netfilter
program did not crash
simplifying guilty program options
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: lost connection to test machine
a never seen crash title: lost connection to test machine, ignore
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
program did not crash
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
program did not crash
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
validation run: crashed=true
testing program (duration=30s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
validation run: crashed=true
testing program (duration=30s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: SYZFAIL: failed to recv rpc
validation run: crashed=true
reproducing took 11m46.740718715s
repro crashed as (corrupted=false):
Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts.
2025/12/31 04:21:34 parsed 1 programs
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 22: Invalid argument)
aborting RPC server: mismatching manager/executor arches: amd64 vs 386 (full request: `&flatrpc.ConnectRequestRawT{Cookie:0x333e039d8e257779, Id:0, Arch:"386", GitRevision:"d6526ea3e6ad9081c902859bbb80f9f840377cb4", SyzRevision:"5e29b4d4fd108d8b9f527cb3e326d4a12d8f0ded"}`)

final repro crashed as (corrupted=false):
Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts.
2025/12/31 04:21:34 parsed 1 programs
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 22: Invalid argument)
aborting RPC server: mismatching manager/executor arches: amd64 vs 386 (full request: `&flatrpc.ConnectRequestRawT{Cookie:0x333e039d8e257779, Id:0, Arch:"386", GitRevision:"d6526ea3e6ad9081c902859bbb80f9f840377cb4", SyzRevision:"5e29b4d4fd108d8b9f527cb3e326d4a12d8f0ded"}`)