Extracting prog: 1m49.882890535s Minimizing prog: 654.309µs Simplifying prog options: 2m43.095060066s Extracting C: 45.095530594s 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: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:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) 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:4 Slowdown:1 Sandbox:none 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:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp program did not crash simplifying guilty program options testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) program crashed: lost connection to test machine a never seen crash title: lost connection to test machine, ignore testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) program crashed: SYZFAIL: failed to recv rpc extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp 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: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:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) program crashed: lost connection to test machine 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: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:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) program crashed: lost connection to test machine 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: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:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp detailed listing: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) program crashed: SYZFAIL: failed to recv rpc validation run: crashed=true reproducing took 8m40.869922985s repro crashed as (corrupted=false): SYZFAIL: failed to recv rpc fd=4 want=4 recv=0 n=0aborting RPC server: mismatching manager/executor arches: amd64 vs 386 (full request: `&flatrpc.ConnectRequestRawT{Cookie:0xd5ca8e363be3c616, Id:0, Arch:"386", GitRevision:"64219f1537429ca826770c4d6f3d49ee6964d16c", SyzRevision:"3cef233bb64c12952c330d3f223bf232815cec07"}`) FreeBSD/amd64 (ci-freebsd-i386-0.us-central1-b.c.syzkaller.internal) (ttyu0) login: set $lines = 0 Password: Login incorrect login: show registers Password: Login incorrect login: ps Nov 25 07:08:41 ci-freebsd-i386-0 login[747]: 2 LOGIN FAILURES ON ttyu0 Password: Login incorrect login: show malloc Password: Login incorrect show all tcpcbs/bl final repro crashed as (corrupted=false): SYZFAIL: failed to recv rpc fd=4 want=4 recv=0 n=0aborting RPC server: mismatching manager/executor arches: amd64 vs 386 (full request: `&flatrpc.ConnectRequestRawT{Cookie:0xd5ca8e363be3c616, Id:0, Arch:"386", GitRevision:"64219f1537429ca826770c4d6f3d49ee6964d16c", SyzRevision:"3cef233bb64c12952c330d3f223bf232815cec07"}`) FreeBSD/amd64 (ci-freebsd-i386-0.us-central1-b.c.syzkaller.internal) (ttyu0) login: set $lines = 0 Password: Login incorrect login: show registers Password: Login incorrect login: ps Nov 25 07:08:41 ci-freebsd-i386-0 login[747]: 2 LOGIN FAILURES ON ttyu0 Password: Login incorrect login: show malloc Password: Login incorrect show all tcpcbs/bl