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 '10.128.1.71' (ED25519) to the list of known hosts. [ 92.366646][ T884] cfg80211: failed to load regulatory.db 2026/10/07 23:35:04 parsed 1 programs 2026/10/07 23:35:04 serving rpc on tcp://40173 [ 97.123667][ T5635] cgroup: Unknown subsys name 'net' [ 97.217323][ T5635] cgroup: Unknown subsys name 'cpuset' [ 97.220831][ T5635] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 99.040378][ T5635] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 102.215099][ T5645] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 102.217101][ T5645] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 102.217835][ T5645] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 102.218845][ T5645] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 102.219526][ T5645] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 102.461548][ T5644] 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. [ 102.481252][ T5644] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 102.497449][ T5644] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 103.323726][ T5657] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 103.324385][ T5657] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 103.996623][ T5662] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.997396][ T5662] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.997525][ T5662] bridge_slave_0: entered allmulticast mode [ 103.999109][ T5662] bridge_slave_0: entered promiscuous mode [ 104.018320][ T5662] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.018747][ T5662] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.019218][ T5662] bridge_slave_1: entered allmulticast mode [ 104.025890][ T5662] bridge_slave_1: entered promiscuous mode [ 104.077624][ T5662] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 104.080567][ T5662] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 104.122254][ T5662] team0: Port device team_slave_0 added [ 104.130435][ T5662] team0: Port device team_slave_1 added [ 104.163149][ T5662] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 104.163164][ T5662] 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. [ 104.163186][ T5662] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 104.166103][ T5662] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 104.166120][ T5662] 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. [ 104.166150][ T5662] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 104.284057][ T5662] hsr_slave_0: entered promiscuous mode [ 104.284974][ T5662] hsr_slave_1: entered promiscuous mode [ 104.475225][ T5662] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 104.482463][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 104.488367][ T5662] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 104.507596][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 104.508678][ T5662] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 104.528461][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 104.530164][ T5662] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 104.548561][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 104.647448][ T5662] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.673568][ T5662] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.681437][ T1379] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.681576][ T1379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.714319][ T1352] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.714415][ T1352] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.122524][ T5662] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.181458][ T5662] veth0_vlan: entered promiscuous mode [ 105.200454][ T5662] veth1_vlan: entered promiscuous mode [ 105.239301][ T5662] veth0_macvtap: entered promiscuous mode [ 105.248085][ T5662] veth1_macvtap: entered promiscuous mode [ 105.273337][ T5662] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.280727][ T5662] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.326598][ T142] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.326647][ T142] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.383009][ T142] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.383062][ T142] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.472043][ T61] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.604298][ T142] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.604319][ T142] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.666880][ T1379] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.666905][ T1379] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.559341][ T61] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 107.535859][ T61] netdevsim netdevsim3 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) [ 108.141605][ T61] netdevsim netdevsim3 netdevsim0 (unregistering): unset [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). [ 108.403500][ T61] bridge_slave_1: left allmulticast mode [ 108.403545][ T61] bridge_slave_1: left promiscuous mode [ 108.404336][ T61] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.438038][ T61] bridge_slave_0: left allmulticast mode [ 108.438082][ T61] bridge_slave_0: left promiscuous mode [ 108.438758][ T61] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.805774][ T61] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 108.823410][ T61] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 108.827863][ T61] bond0 (unregistering): Released all slaves [ 109.013148][ T61] hsr_slave_0: left promiscuous mode [ 109.038749][ T61] hsr_slave_1: left promiscuous mode [ 109.040055][ T61] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 109.040096][ T61] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 109.041876][ T61] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 109.041904][ T61] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 109.101972][ T61] veth1_macvtap: left promiscuous mode [ 109.102036][ T61] veth0_macvtap: left promiscuous mode [ 109.102175][ T61] veth1_vlan: left promiscuous mode [ 109.102315][ T61] veth0_vlan: left promiscuous mode [ 109.751944][ T61] team0 (unregistering): Port device team_slave_1 removed [ 109.774364][ T61] team0 (unregistering): Port device team_slave_0 removed [ 109.916591][ T5279] 8021q: adding VLAN 0 to HW filter on device eth1 [ 110.747834][ T5279] 8021q: adding VLAN 0 to HW filter on device eth2 [ 111.398090][ T5279] 8021q: adding VLAN 0 to HW filter on device eth3 [ 111.812271][ 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-build1115762592=/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/ccRRNRfm.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.