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 '[localhost]:52399' (ED25519) to the list of known hosts. 2026/09/16 21:37:48 parsed 1 programs 2026/09/16 21:37:48 serving rpc on tcp://46039 [ 48.219867][ T5748] cgroup: Unknown subsys name 'net' [ 48.370735][ T5748] cgroup: Unknown subsys name 'cpuset' [ 48.376194][ T5748] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 49.500614][ T5748] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 51.703737][ T5757] 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. [ 51.720488][ T5757] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 51.726137][ T5757] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.323848][ T5781] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.324221][ T5781] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.612079][ T5765] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.612810][ T5765] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.612914][ T5765] bridge_slave_0: entered allmulticast mode [ 52.614180][ T5765] bridge_slave_0: entered promiscuous mode [ 52.634023][ T5765] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.634067][ T5765] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.634125][ T5765] bridge_slave_1: entered allmulticast mode [ 52.634931][ T5765] bridge_slave_1: entered promiscuous mode [ 52.688365][ T5765] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.692549][ T5765] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.770281][ T5765] team0: Port device team_slave_0 added [ 52.771864][ T5765] team0: Port device team_slave_1 added [ 52.789888][ T5765] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.789903][ T5765] 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. [ 52.789922][ T5765] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.791939][ T5765] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.791952][ T5765] 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. [ 52.791971][ T5765] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.809492][ T5812] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.811267][ T5812] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.812540][ T5812] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.813478][ T5812] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.813989][ T5812] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.867745][ T5765] hsr_slave_0: entered promiscuous mode [ 52.868318][ T5765] hsr_slave_1: entered promiscuous mode [ 53.318321][ T74] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.318334][ T74] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.408471][ T5765] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.435328][ T5765] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 53.440989][ T5765] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.444356][ T5765] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 53.445060][ T5765] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.449307][ T5765] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 53.450097][ T5765] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.455031][ T5765] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 53.455914][ T74] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.455931][ T74] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.545581][ T5765] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.562230][ T5765] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.565901][ T106] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.566337][ T106] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.575980][ T106] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.576060][ T106] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.046209][ T5765] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.080207][ T5765] veth0_vlan: entered promiscuous mode [ 54.090085][ T5765] veth1_vlan: entered promiscuous mode [ 54.108335][ T5765] veth0_macvtap: entered promiscuous mode [ 54.110609][ T5765] veth1_macvtap: entered promiscuous mode [ 54.118000][ T5765] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.122718][ T5765] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.150290][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.150318][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.150335][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.150351][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.195027][ T12] netdevsim netdevsim0 netdevsim3 (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). [ 54.283705][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.355854][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.497911][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.739848][ T12] bridge_slave_1: left allmulticast mode [ 56.739884][ T12] bridge_slave_1: left promiscuous mode [ 56.740767][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.748107][ T12] bridge_slave_0: left allmulticast mode [ 56.748128][ T12] bridge_slave_0: left promiscuous mode [ 56.748287][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.863545][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 56.865525][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 56.869518][ T12] bond0 (unregistering): Released all slaves [ 56.962682][ T12] hsr_slave_0: left promiscuous mode [ 56.963146][ T12] hsr_slave_1: left promiscuous mode [ 56.963582][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 56.963598][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 56.964222][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 56.964236][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 56.971707][ T12] veth1_macvtap: left promiscuous mode [ 56.971748][ T12] veth0_macvtap: left promiscuous mode [ 56.971859][ T12] veth1_vlan: left promiscuous mode [ 56.971943][ T12] veth0_vlan: left promiscuous mode [ 57.115929][ T12] team0 (unregistering): Port device team_slave_1 removed [ 57.133051][ T12] team0 (unregistering): Port device team_slave_0 removed [ 57.185202][ T5453] 8021q: adding VLAN 0 to HW filter on device eth2 [ 57.352155][ T5453] 8021q: adding VLAN 0 to HW filter on device eth3 [ 57.518197][ T5453] 8021q: adding VLAN 0 to HW filter on device eth4 [ 57.706494][ T5453] 8021q: adding VLAN 0 to HW filter on device eth5 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-build2263455852=/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 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/ccM2I4xH.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.