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]:50937' (ED25519) to the list of known hosts. 2026/09/15 02:54:08 parsed 1 programs 2026/09/15 02:54:08 serving rpc on tcp://40509 [ 51.018830][ T5747] cgroup: Unknown subsys name 'net' [ 51.127646][ T5747] cgroup: Unknown subsys name 'cpuset' [ 51.131500][ T5747] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 52.520450][ T5747] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 55.451428][ 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. [ 55.490979][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.490999][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.492341][ T5757] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 55.510392][ T5757] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 55.641838][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.641860][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.829529][ T66] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.830575][ T66] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.831401][ T66] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.832139][ T66] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.832528][ T66] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.932617][ T5802] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 56.932896][ T5802] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 57.032911][ T5769] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.033003][ T5769] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.033119][ T5769] bridge_slave_0: entered allmulticast mode [ 57.034729][ T5769] bridge_slave_0: entered promiscuous mode [ 57.039314][ T5769] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.039361][ T5769] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.039450][ T5769] bridge_slave_1: entered allmulticast mode [ 57.040442][ T5769] bridge_slave_1: entered promiscuous mode [ 57.119251][ T5769] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.137264][ T5769] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.350160][ T5769] team0: Port device team_slave_0 added [ 57.362939][ T5769] team0: Port device team_slave_1 added [ 57.417359][ T5769] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.417377][ T5769] 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. [ 57.417396][ T5769] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.430308][ T5769] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.430327][ T5769] 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. [ 57.430354][ T5769] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.605499][ T5769] hsr_slave_0: entered promiscuous mode [ 57.606694][ T5769] hsr_slave_1: entered promiscuous mode [ 57.976208][ T5769] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 57.987128][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 57.988702][ T5769] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 57.992159][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 57.993845][ T5769] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 58.000578][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 58.004100][ T5769] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 58.012316][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 58.103684][ T5769] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.119294][ T5769] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.128805][ T37] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.128939][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.131296][ T37] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.131377][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.510343][ T5769] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.677549][ T5769] veth0_vlan: entered promiscuous mode [ 58.685197][ T5769] veth1_vlan: entered promiscuous mode [ 58.711173][ T5769] veth0_macvtap: entered promiscuous mode [ 58.715695][ T5769] veth1_macvtap: entered promiscuous mode [ 58.730261][ T5769] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.738604][ T5769] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.775395][ T13] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.776413][ T13] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.776445][ T13] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.776473][ T13] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.837077][ T5784] netdevsim netdevsim5 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). [ 59.005630][ T5784] netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.117565][ T5784] netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.176795][ T5784] netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.017438][ T5784] bridge_slave_1: left allmulticast mode [ 60.017469][ T5784] bridge_slave_1: left promiscuous mode [ 60.018373][ T5784] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.023532][ T5784] bridge_slave_0: left allmulticast mode [ 60.023546][ T5784] bridge_slave_0: left promiscuous mode [ 60.023645][ T5784] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.151598][ T5784] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 60.156955][ T5784] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 60.158031][ T5784] bond0 (unregistering): Released all slaves [ 60.230072][ T5784] hsr_slave_0: left promiscuous mode [ 60.230565][ T5784] hsr_slave_1: left promiscuous mode [ 60.230997][ T5784] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 60.231012][ T5784] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 60.231870][ T5784] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 60.231879][ T5784] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 60.237922][ T5784] veth1_macvtap: left promiscuous mode [ 60.238016][ T5784] veth0_macvtap: left promiscuous mode [ 60.238146][ T5784] veth1_vlan: left promiscuous mode [ 60.238231][ T5784] veth0_vlan: left promiscuous mode [ 60.377488][ T5784] team0 (unregistering): Port device team_slave_1 removed [ 60.388544][ T5784] team0 (unregistering): Port device team_slave_0 removed [ 60.447040][ T5451] 8021q: adding VLAN 0 to HW filter on device eth2 [ 60.654287][ T5451] 8021q: adding VLAN 0 to HW filter on device eth4 [ 60.861929][ T5451] 8021q: adding VLAN 0 to HW filter on device eth3 [ 61.026589][ T5451] 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-build1170068323=/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 1fe56c0af80 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=1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260910-094642" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260910-094642" ./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=1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260910-094642" -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=\"1fe56c0af80df10ab9f07819d9fa709dc9971ae1\" /usr/bin/ld: /tmp/ccbm6IKO.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.