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]:19186' (ED25519) to the list of known hosts. 2026/09/12 08:05:11 parsed 1 programs 2026/09/12 08:05:11 serving rpc on tcp://45499 [ 48.496634][ T5745] cgroup: Unknown subsys name 'net' [ 48.658202][ T5745] cgroup: Unknown subsys name 'cpuset' [ 48.662340][ T5745] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 49.807959][ T5745] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 52.073682][ T5753] 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. [ 52.078245][ T5753] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.081238][ T5753] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.261914][ T1157] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.261936][ T1157] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.279822][ T142] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.279842][ T142] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.246056][ T5780] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 53.246349][ T5780] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 53.624362][ T5097] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.625442][ T5097] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.628013][ T5097] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.630579][ T5097] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.630988][ T5097] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.818861][ T5808] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.818998][ T5808] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.819088][ T5808] bridge_slave_0: entered allmulticast mode [ 54.821005][ T5808] bridge_slave_0: entered promiscuous mode [ 54.825170][ T5808] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.825245][ T5808] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.825329][ T5808] bridge_slave_1: entered allmulticast mode [ 54.826704][ T5808] bridge_slave_1: entered promiscuous mode [ 54.848855][ T5808] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.851334][ T5808] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.875037][ T5808] team0: Port device team_slave_0 added [ 54.877324][ T5808] team0: Port device team_slave_1 added [ 54.898536][ T5808] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.898551][ T5808] 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. [ 54.898568][ T5808] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.900758][ T5808] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.900770][ T5808] 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. [ 54.900789][ T5808] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.936598][ T5808] hsr_slave_0: entered promiscuous mode [ 54.937609][ T5808] hsr_slave_1: entered promiscuous mode [ 55.096567][ T5808] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 55.106447][ T5808] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 55.107275][ T5808] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.111409][ T5808] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 55.112382][ T5808] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.117633][ T5808] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 55.118527][ T5808] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.125652][ T5808] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 55.143725][ T5808] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.143776][ T5808] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.144362][ T5808] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.144407][ T5808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.187937][ T5808] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.196555][ T142] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.197062][ T142] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.207028][ T5808] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.211249][ T142] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.211295][ T142] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.215433][ T142] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.215477][ T142] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.502826][ T5808] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.536293][ T5808] veth0_vlan: entered promiscuous mode [ 55.542324][ T5808] veth1_vlan: entered promiscuous mode [ 55.567491][ T5808] veth0_macvtap: entered promiscuous mode [ 55.569753][ T5808] veth1_macvtap: entered promiscuous mode [ 55.579520][ T5808] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.587442][ T5808] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.644322][ T5574] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.644368][ T5574] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.644392][ T5574] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.644413][ T5574] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.666942][ T5574] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.747694][ T5574] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.818503][ T5574] netdevsim netdevsim1 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). [ 57.660557][ T5574] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.082309][ T5574] bridge_slave_1: left allmulticast mode [ 59.082342][ T5574] bridge_slave_1: left promiscuous mode [ 59.082828][ T5574] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.088144][ T5574] bridge_slave_0: left allmulticast mode [ 59.088159][ T5574] bridge_slave_0: left promiscuous mode [ 59.088255][ T5574] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.217955][ T5574] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 59.220990][ T5574] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 59.222371][ T5574] bond0 (unregistering): Released all slaves [ 59.312932][ T5574] hsr_slave_0: left promiscuous mode [ 59.315580][ T5574] hsr_slave_1: left promiscuous mode [ 59.316704][ T5574] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 59.316728][ T5574] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 59.318905][ T5574] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 59.318921][ T5574] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 59.326167][ T5574] veth1_macvtap: left promiscuous mode [ 59.326218][ T5574] veth0_macvtap: left promiscuous mode [ 59.326265][ T5574] veth1_vlan: left promiscuous mode [ 59.326319][ T5574] veth0_vlan: left promiscuous mode [ 59.507054][ T5574] team0 (unregistering): Port device team_slave_1 removed [ 59.517645][ T5574] team0 (unregistering): Port device team_slave_0 removed [ 59.569015][ T5451] 8021q: adding VLAN 0 to HW filter on device eth2 [ 59.758403][ T5451] 8021q: adding VLAN 0 to HW filter on device eth3 [ 59.925630][ T5451] 8021q: adding VLAN 0 to HW filter on device eth4 [ 60.176961][ 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-build2811468327=/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 ee03bfea21e 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=ee03bfea21e2c08d926d0f0929c233d295e375c7 -X github.com/google/syzkaller/prog.gitRevisionDate=20260812-084344" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=ee03bfea21e2c08d926d0f0929c233d295e375c7 -X github.com/google/syzkaller/prog.gitRevisionDate=20260812-084344" ./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=ee03bfea21e2c08d926d0f0929c233d295e375c7 -X github.com/google/syzkaller/prog.gitRevisionDate=20260812-084344" -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=\"ee03bfea21e2c08d926d0f0929c233d295e375c7\" /usr/bin/ld: /tmp/ccP65ypL.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.