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 '10.128.1.187' (ED25519) to the list of known hosts. 2026/09/30 01:01:32 parsed 1 programs 2026/09/30 01:01:32 serving rpc on tcp://44741 [ 131.603886][ T5636] cgroup: Unknown subsys name 'net' [ 131.695927][ T5636] cgroup: Unknown subsys name 'cpuset' [ 131.699514][ T5636] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 133.759386][ T5636] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 137.901227][ T5658] 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. [ 138.017407][ T5658] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 138.052780][ T5658] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 138.781939][ T5680] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 138.783367][ T5680] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 138.784175][ T5680] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 138.786254][ T5680] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 138.788524][ T5680] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 139.482304][ T37] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 139.482333][ T37] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 139.723151][ T49] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 139.723176][ T49] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 140.316182][ T5695] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 140.337725][ T5695] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 141.334160][ T1313] ieee802154 phy0 wpan0: encryption failed: -22 [ 141.334245][ T1313] ieee802154 phy1 wpan1: encryption failed: -22 [ 141.932709][ T5696] bridge0: port 1(bridge_slave_0) entered blocking state [ 141.933909][ T5696] bridge0: port 1(bridge_slave_0) entered disabled state [ 141.934032][ T5696] bridge_slave_0: entered allmulticast mode [ 141.935614][ T5696] bridge_slave_0: entered promiscuous mode [ 141.960816][ T5696] bridge0: port 2(bridge_slave_1) entered blocking state [ 141.961145][ T5696] bridge0: port 2(bridge_slave_1) entered disabled state [ 141.962015][ T5696] bridge_slave_1: entered allmulticast mode [ 141.966532][ T5696] bridge_slave_1: entered promiscuous mode [ 142.024543][ T5696] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 142.027511][ T5696] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 142.072525][ T5696] team0: Port device team_slave_0 added [ 142.074878][ T5696] team0: Port device team_slave_1 added [ 142.108329][ T5696] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 142.108344][ T5696] 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. [ 142.108363][ T5696] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 142.110816][ T5696] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 142.110834][ T5696] 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. [ 142.110861][ T5696] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 142.234601][ T5696] hsr_slave_0: entered promiscuous mode [ 142.235583][ T5696] hsr_slave_1: entered promiscuous mode [ 142.437764][ T5696] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 142.452607][ T5696] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 142.453824][ T5696] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 142.461650][ T5696] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 142.465329][ T5696] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 142.495592][ T5696] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 142.509000][ T5696] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 142.518684][ T5696] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 142.620619][ T5696] 8021q: adding VLAN 0 to HW filter on device bond0 [ 142.648995][ T5696] 8021q: adding VLAN 0 to HW filter on device team0 [ 142.664331][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 142.664576][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 142.693750][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 142.693854][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 143.115389][ T5696] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 143.176619][ T5696] veth0_vlan: entered promiscuous mode [ 143.193702][ T5696] veth1_vlan: entered promiscuous mode [ 143.230865][ T5696] veth0_macvtap: entered promiscuous mode [ 143.243594][ T5696] veth1_macvtap: entered promiscuous mode [ 143.267520][ T5696] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 143.285723][ T5696] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 143.323264][ T37] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 143.361795][ T3376] netdevsim netdevsim2 netdevsim1: set [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) [ 143.381490][ T12] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 143.381949][ T3376] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument). [ 143.562582][ T12] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 143.639282][ T12] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 144.518289][ T12] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 145.536704][ T12] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 146.387852][ T12] bridge_slave_1: left allmulticast mode [ 146.387899][ T12] bridge_slave_1: left promiscuous mode [ 146.389668][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 146.418274][ T12] bridge_slave_0: left allmulticast mode [ 146.418304][ T12] bridge_slave_0: left promiscuous mode [ 146.419272][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 146.655319][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 146.658556][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 146.660634][ T12] bond0 (unregistering): Released all slaves [ 146.797640][ T12] hsr_slave_0: left promiscuous mode [ 146.798720][ T12] hsr_slave_1: left promiscuous mode [ 146.799840][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 146.799876][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 146.801148][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 146.801189][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 146.838367][ T12] veth1_macvtap: left promiscuous mode [ 146.838436][ T12] veth0_macvtap: left promiscuous mode [ 146.838611][ T12] veth1_vlan: left promiscuous mode [ 146.838708][ T12] veth0_vlan: left promiscuous mode [ 147.208824][ T12] team0 (unregistering): Port device team_slave_1 removed [ 147.225938][ T12] team0 (unregistering): Port device team_slave_0 removed [ 147.350582][ T5281] 8021q: adding VLAN 0 to HW filter on device eth1 [ 147.940211][ T5281] 8021q: adding VLAN 0 to HW filter on device eth2 [ 148.456064][ T5281] 8021q: adding VLAN 0 to HW filter on device eth3 [ 148.888346][ T5281] 8021q: adding VLAN 0 to HW filter on device eth4 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-build890014577=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/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 70a60e12a1a 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=70a60e12a1aa155e837bf0ad723487d72b1d2916 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-140827" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=70a60e12a1aa155e837bf0ad723487d72b1d2916 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-140827" ./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=70a60e12a1aa155e837bf0ad723487d72b1d2916 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-140827" -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=\"70a60e12a1aa155e837bf0ad723487d72b1d2916\" /usr/bin/ld: /tmp/ccf79QE9.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.