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 '10.128.1.136' (ED25519) to the list of known hosts. 2026/09/25 18:40:12 parsed 1 programs 2026/09/25 18:40:12 serving rpc on tcp://42965 [ 103.154221][ T1863] cfg80211: failed to load regulatory.db [ 105.263715][ T5630] cgroup: Unknown subsys name 'net' [ 105.361768][ T5630] cgroup: Unknown subsys name 'cpuset' [ 105.365563][ T5630] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 107.235934][ T5630] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 111.358855][ T5649] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 111.360469][ T5649] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 111.363623][ T5649] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 111.366484][ T5649] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 111.384141][ T5649] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 111.973196][ T5647] 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. [ 112.112453][ T5647] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 112.115590][ T5647] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 112.147496][ T5647] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 112.148401][ T5647] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 114.586636][ T5661] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.592019][ T5661] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.592240][ T5661] bridge_slave_0: entered allmulticast mode [ 114.596319][ T5661] bridge_slave_0: entered promiscuous mode [ 114.663323][ T5661] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.663442][ T5661] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.663606][ T5661] bridge_slave_1: entered allmulticast mode [ 114.666213][ T5661] bridge_slave_1: entered promiscuous mode [ 115.112939][ T5661] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 115.153834][ T5661] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 115.264225][ T5661] team0: Port device team_slave_0 added [ 115.310432][ T5661] team0: Port device team_slave_1 added [ 115.378052][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 115.378084][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 115.425695][ T5661] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 115.425713][ T5661] 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. [ 115.425765][ T5661] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 115.502817][ T5661] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 115.502836][ T5661] 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. [ 115.502862][ T5661] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 115.836302][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 115.836326][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 115.958854][ T5661] hsr_slave_0: entered promiscuous mode [ 115.960745][ T5661] hsr_slave_1: entered promiscuous mode [ 116.440447][ T5661] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 116.465747][ T5661] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 116.480442][ T5661] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 116.486773][ T5661] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 116.506509][ T5661] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 116.522990][ T5661] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 116.524483][ T5661] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 116.532277][ T5661] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 116.673268][ T5661] 8021q: adding VLAN 0 to HW filter on device bond0 [ 116.714940][ T5661] 8021q: adding VLAN 0 to HW filter on device team0 [ 116.731584][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.731715][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 116.778959][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 116.779037][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 116.944695][ T5661] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 117.028074][ T5661] veth0_vlan: entered promiscuous mode [ 117.074766][ T5661] veth1_vlan: entered promiscuous mode [ 117.167336][ T5661] veth0_macvtap: entered promiscuous mode [ 117.191225][ T5661] veth1_macvtap: entered promiscuous mode [ 117.225145][ T5661] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 117.269170][ T5661] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 117.324518][ T59] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.348119][ T49] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.433093][ T12] netdevsim netdevsim4 netdevsim2: 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) [ 117.474516][ T49] netdevsim netdevsim4 netdevsim3: 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). [ 118.162158][ T59] netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.312216][ T59] netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 119.475495][ T59] netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 120.290414][ T59] netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 120.458243][ T59] bridge_slave_1: left allmulticast mode [ 120.458323][ T59] bridge_slave_1: left promiscuous mode [ 120.460609][ T59] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.501034][ T59] bridge_slave_0: left allmulticast mode [ 120.501072][ T59] bridge_slave_0: left promiscuous mode [ 120.502196][ T59] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.762829][ T59] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 120.779400][ T59] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 120.782028][ T59] bond0 (unregistering): Released all slaves [ 121.320789][ T59] hsr_slave_0: left promiscuous mode [ 121.321688][ T59] hsr_slave_1: left promiscuous mode [ 121.324225][ T59] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 121.324265][ T59] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 121.325730][ T59] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 121.325753][ T59] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 121.387229][ T59] veth1_macvtap: left promiscuous mode [ 121.387294][ T59] veth0_macvtap: left promiscuous mode [ 121.399546][ T59] veth1_vlan: left promiscuous mode [ 121.399760][ T59] veth0_vlan: left promiscuous mode [ 121.704360][ T59] team0 (unregistering): Port device team_slave_1 removed [ 121.727797][ T59] team0 (unregistering): Port device team_slave_0 removed [ 121.869743][ T5279] 8021q: adding VLAN 0 to HW filter on device eth1 [ 122.390648][ T5279] 8021q: adding VLAN 0 to HW filter on device eth3 [ 122.829992][ T5279] 8021q: adding VLAN 0 to HW filter on device eth2 [ 123.302239][ T5279] 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-build2750385607=/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 1e72964b011 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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" -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=\"1e72964b0111319984575e60f266d1fa0a98abb5\" /usr/bin/ld: /tmp/cc1b4UiT.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.