SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument). Warning: Permanently added '10.128.1.174' (ED25519) to the list of known hosts. 2026/09/15 11:39:16 parsed 1 programs 2026/09/15 11:39:16 serving rpc on tcp://40329 [ 164.032451][ T5644] cgroup: Unknown subsys name 'net' [ 164.136368][ T5644] cgroup: Unknown subsys name 'cpuset' [ 164.141195][ T5644] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 166.199670][ T5644] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 170.039756][ T5655] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 170.066765][ T5655] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 170.069747][ T5655] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 170.748703][ T4936] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 170.750332][ T4936] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 170.751133][ T4936] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 170.794058][ T4936] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 170.795173][ T4936] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 172.618702][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 172.618731][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 172.704043][ T49] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 172.704068][ T49] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 173.936465][ T5688] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 173.937304][ T5688] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 174.893786][ T5695] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.894352][ T5695] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.894468][ T5695] bridge_slave_0: entered allmulticast mode [ 174.895993][ T5695] bridge_slave_0: entered promiscuous mode [ 174.909520][ T5695] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.910196][ T5695] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.910684][ T5695] bridge_slave_1: entered allmulticast mode [ 174.917803][ T5695] bridge_slave_1: entered promiscuous mode [ 174.988942][ T5695] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 175.003307][ T5695] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 175.039371][ T5695] team0: Port device team_slave_0 added [ 175.048961][ T5695] team0: Port device team_slave_1 added [ 175.079853][ T5695] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 175.079869][ T5695] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 175.079894][ T5695] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 175.089178][ T5695] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 175.089247][ T5695] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 175.089313][ T5695] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 175.219468][ T5695] hsr_slave_0: entered promiscuous mode [ 175.220866][ T5695] hsr_slave_1: entered promiscuous mode [ 175.462685][ T5695] netdevsim netdevsim8 netdevsim0: renamed from eth0 [ 175.475140][ T5695] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 175.479413][ T5695] netdevsim netdevsim8 netdevsim1: renamed from eth1 [ 175.504861][ T5695] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 175.505847][ T5695] netdevsim netdevsim8 netdevsim2: renamed from eth2 [ 175.509981][ T5695] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 175.538865][ T5695] netdevsim netdevsim8 netdevsim3: renamed from eth3 [ 175.550904][ T5695] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 175.596778][ T5695] bridge0: port 2(bridge_slave_1) entered blocking state [ 175.596992][ T5695] bridge0: port 2(bridge_slave_1) entered forwarding state [ 175.597537][ T5695] bridge0: port 1(bridge_slave_0) entered blocking state [ 175.597930][ T5695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 175.709168][ T5695] 8021q: adding VLAN 0 to HW filter on device bond0 [ 175.736293][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 175.737639][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 175.774915][ T5695] 8021q: adding VLAN 0 to HW filter on device team0 [ 175.793556][ T1127] bridge0: port 1(bridge_slave_0) entered blocking state [ 175.793704][ T1127] bridge0: port 1(bridge_slave_0) entered forwarding state [ 175.826576][ T1127] bridge0: port 2(bridge_slave_1) entered blocking state [ 175.826677][ T1127] bridge0: port 2(bridge_slave_1) entered forwarding state [ 176.299025][ T5695] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 176.565305][ T5695] veth0_vlan: entered promiscuous mode [ 176.585921][ T5695] veth1_vlan: entered promiscuous mode [ 176.650471][ T5695] veth0_macvtap: entered promiscuous mode [ 176.669091][ T5695] veth1_macvtap: entered promiscuous mode [ 176.700205][ T5695] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 176.721025][ T5695] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 176.822810][ T13] netdevsim netdevsim8 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.822864][ T13] netdevsim netdevsim8 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.822902][ T13] netdevsim netdevsim8 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.822938][ T13] netdevsim netdevsim8 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.927812][ T1127] netdevsim netdevsim8 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 177.042283][ T1127] netdevsim netdevsim8 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 177.748476][ T1127] netdevsim netdevsim8 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument). [ 178.374034][ T1127] netdevsim netdevsim8 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 179.252590][ T1127] bridge_slave_1: left allmulticast mode [ 179.252632][ T1127] bridge_slave_1: left promiscuous mode [ 179.253798][ T1127] bridge0: port 2(bridge_slave_1) entered disabled state [ 179.257783][ T1127] bridge_slave_0: left allmulticast mode [ 179.257805][ T1127] bridge_slave_0: left promiscuous mode [ 179.259188][ T1127] bridge0: port 1(bridge_slave_0) entered disabled state [ 179.468567][ T1127] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 179.483504][ T1127] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 179.485895][ T1127] bond0 (unregistering): Released all slaves [ 179.611377][ T1127] hsr_slave_0: left promiscuous mode [ 179.613582][ T1127] hsr_slave_1: left promiscuous mode [ 179.614734][ T1127] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 179.614773][ T1127] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 179.618745][ T1127] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 179.618773][ T1127] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 179.685609][ T1127] veth1_macvtap: left promiscuous mode [ 179.685678][ T1127] veth0_macvtap: left promiscuous mode [ 179.685913][ T1127] veth1_vlan: left promiscuous mode [ 179.686015][ T1127] veth0_vlan: left promiscuous mode [ 180.098022][ T1127] team0 (unregistering): Port device team_slave_1 removed [ 180.130421][ T1127] team0 (unregistering): Port device team_slave_0 removed [ 180.315425][ T5281] 8021q: adding VLAN 0 to HW filter on device eth1 [ 181.056031][ T5281] 8021q: adding VLAN 0 to HW filter on device eth2 [ 181.813895][ T5281] 8021q: adding VLAN 0 to HW filter on device eth4 [ 182.339157][ T5281] 8021q: adding VLAN 0 to HW filter on device eth3 syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build429373818=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 85995287a88 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=85995287a888340d8818a8f3c43e2e89555eea21 -X github.com/google/syzkaller/prog.gitRevisionDate=20260902-115702" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=85995287a888340d8818a8f3c43e2e89555eea21 -X github.com/google/syzkaller/prog.gitRevisionDate=20260902-115702" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=85995287a888340d8818a8f3c43e2e89555eea21 -X github.com/google/syzkaller/prog.gitRevisionDate=20260902-115702" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_386 x86_64-linux-gnu-g++ -o ./bin/linux_386/syz-executor executor/executor.cc \ -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_386=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"85995287a888340d8818a8f3c43e2e89555eea21\" /usr/bin/ld: /tmp/cch4vc37.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x145): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null [INFO] Unsupported architecture '386', skipping check.