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]:19816' (ED25519) to the list of known hosts. 2026/09/20 06:42:23 parsed 1 programs 2026/09/20 06:42:23 serving rpc on tcp://37873 [ 47.154781][ T5742] cgroup: Unknown subsys name 'net' [ 47.275376][ T5742] cgroup: Unknown subsys name 'cpuset' [ 47.277954][ T5742] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 48.125899][ T5742] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 50.478361][ T5749] 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. [ 50.483339][ T5749] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 50.494038][ T5749] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.159739][ T5785] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.160016][ T5785] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 52.594898][ T5790] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.594988][ T5790] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.595087][ T5790] bridge_slave_0: entered allmulticast mode [ 52.597081][ T5790] bridge_slave_0: entered promiscuous mode [ 52.600732][ T5790] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.600860][ T5790] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.600951][ T5790] bridge_slave_1: entered allmulticast mode [ 52.602342][ T5790] bridge_slave_1: entered promiscuous mode [ 52.630227][ T5790] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.633123][ T5790] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.655724][ T5790] team0: Port device team_slave_0 added [ 52.657492][ T5790] team0: Port device team_slave_1 added [ 52.679940][ T5790] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.679982][ T5790] 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. [ 52.680004][ T5790] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.682671][ T5790] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.682684][ T5790] 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. [ 52.682704][ T5790] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.717246][ T5790] hsr_slave_0: entered promiscuous mode [ 52.718045][ T5790] hsr_slave_1: entered promiscuous mode [ 52.872872][ T5790] netdevsim netdevsim8 netdevsim0: renamed from eth0 [ 52.879720][ T5790] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 52.880798][ T5790] netdevsim netdevsim8 netdevsim1: renamed from eth1 [ 52.885000][ T5790] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 52.885836][ T5790] netdevsim netdevsim8 netdevsim2: renamed from eth2 [ 52.890652][ T5790] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 52.891494][ T5790] netdevsim netdevsim8 netdevsim3: renamed from eth3 [ 52.901459][ T5790] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 52.955792][ T5790] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.968408][ T5790] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.971437][ T233] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.971513][ T233] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.976848][ T233] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.976893][ T233] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.268259][ T5790] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.435626][ T5790] veth0_vlan: entered promiscuous mode [ 53.439595][ T5790] veth1_vlan: entered promiscuous mode [ 53.456436][ T5790] veth0_macvtap: entered promiscuous mode [ 53.461134][ T5790] veth1_macvtap: entered promiscuous mode [ 53.475027][ T5790] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.480882][ T5790] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.517735][ T12] netdevsim netdevsim8 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.517989][ T12] netdevsim netdevsim8 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.518334][ T12] netdevsim netdevsim8 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.532438][ T12] netdevsim netdevsim8 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.556692][ T12] netdevsim netdevsim8 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.633598][ T12] netdevsim netdevsim8 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.689168][ T12] netdevsim netdevsim8 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.710449][ T5839] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.711692][ T5839] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.712229][ T5839] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.713450][ T5839] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.714173][ T5839] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.768646][ T12] netdevsim netdevsim8 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.920267][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.920282][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.942908][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.942927][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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). [ 54.844920][ T12] bridge_slave_1: left allmulticast mode [ 54.844959][ T12] bridge_slave_1: left promiscuous mode [ 54.846164][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.851456][ T12] bridge_slave_0: left allmulticast mode [ 54.851475][ T12] bridge_slave_0: left promiscuous mode [ 54.851622][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.993419][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 54.996596][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 54.997850][ T12] bond0 (unregistering): Released all slaves [ 55.069355][ T12] hsr_slave_0: left promiscuous mode [ 55.069947][ T12] hsr_slave_1: left promiscuous mode [ 55.070659][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 55.070681][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 55.071575][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 55.071589][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 55.079897][ T12] veth1_macvtap: left promiscuous mode [ 55.079978][ T12] veth0_macvtap: left promiscuous mode [ 55.080127][ T12] veth1_vlan: left promiscuous mode [ 55.080239][ T12] veth0_vlan: left promiscuous mode [ 55.249517][ T12] team0 (unregistering): Port device team_slave_1 removed [ 55.256029][ T12] team0 (unregistering): Port device team_slave_0 removed [ 55.335696][ T5447] 8021q: adding VLAN 0 to HW filter on device eth3 [ 55.534757][ T5447] 8021q: adding VLAN 0 to HW filter on device eth2 [ 55.689151][ T5447] 8021q: adding VLAN 0 to HW filter on device eth4 [ 56.024518][ T5447] 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-build996219976=/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/cckruhIZ.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.