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]:60863' (ED25519) to the list of known hosts. 2026/10/06 09:49:04 parsed 1 programs 2026/10/06 09:49:04 serving rpc on tcp://38835 [ 50.302561][ T5750] cgroup: Unknown subsys name 'net' [ 50.472489][ T5750] cgroup: Unknown subsys name 'cpuset' [ 50.474887][ T5750] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 51.543999][ T5750] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 54.165308][ T5761] 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. [ 54.189330][ T5761] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 54.193674][ T5761] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 54.766707][ T5779] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 54.766926][ T5779] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 54.910949][ T5795] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.912524][ T5795] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.912928][ T5795] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.914402][ T5795] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.914915][ T5795] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.287998][ T1164] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.288013][ T1164] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.348770][ T1159] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.348791][ T1159] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.984184][ T5786] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.984911][ T5786] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.984976][ T5786] bridge_slave_0: entered allmulticast mode [ 55.985879][ T5786] bridge_slave_0: entered promiscuous mode [ 55.989079][ T5786] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.989118][ T5786] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.989173][ T5786] bridge_slave_1: entered allmulticast mode [ 55.990749][ T5786] bridge_slave_1: entered promiscuous mode [ 56.023310][ T5786] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.036386][ T5786] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.084219][ T5786] team0: Port device team_slave_0 added [ 56.085737][ T5786] team0: Port device team_slave_1 added [ 56.105512][ T5786] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.105528][ T5786] 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. [ 56.105548][ T5786] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.107659][ T5786] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.107671][ T5786] 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. [ 56.107691][ T5786] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.150958][ T5786] hsr_slave_0: entered promiscuous mode [ 56.152036][ T5786] hsr_slave_1: entered promiscuous mode [ 56.322679][ T5786] netdevsim netdevsim6 netdevsim0: renamed from eth0 [ 56.329059][ T5786] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 56.329523][ T5786] netdevsim netdevsim6 netdevsim1: renamed from eth1 [ 56.337758][ T5786] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 56.358578][ T5786] netdevsim netdevsim6 netdevsim2: renamed from eth2 [ 56.361441][ T5786] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 56.362707][ T5786] netdevsim netdevsim6 netdevsim3: renamed from eth3 [ 56.365590][ T5786] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 56.390282][ T5786] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.390381][ T5786] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.390771][ T5786] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.390880][ T5786] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.445401][ T5786] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.457058][ T1164] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.462211][ T1164] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.469994][ T5786] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.483911][ T1164] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.484048][ T1164] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.491088][ T1164] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.491172][ T1164] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.820488][ T5786] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.000425][ T5786] veth0_vlan: entered promiscuous mode [ 57.007815][ T5786] veth1_vlan: entered promiscuous mode [ 57.034494][ T5786] veth0_macvtap: entered promiscuous mode [ 57.036549][ T5786] veth1_macvtap: entered promiscuous mode [ 57.046029][ T5786] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.052519][ T5786] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.087375][ T12] netdevsim netdevsim6 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.087415][ T12] netdevsim netdevsim6 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.098930][ T12] netdevsim netdevsim6 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.098957][ T12] netdevsim netdevsim6 netdevsim1: set [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). [ 57.180544][ T12] netdevsim netdevsim6 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.249144][ T12] netdevsim netdevsim6 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.372783][ T12] netdevsim netdevsim6 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.459293][ T12] netdevsim netdevsim6 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.349398][ T12] bridge_slave_1: left allmulticast mode [ 58.349431][ T12] bridge_slave_1: left promiscuous mode [ 58.350307][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.354151][ T12] bridge_slave_0: left allmulticast mode [ 58.354170][ T12] bridge_slave_0: left promiscuous mode [ 58.354338][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.453010][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.454683][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.455514][ T12] bond0 (unregistering): Released all slaves [ 58.556841][ T12] hsr_slave_0: left promiscuous mode [ 58.558397][ T12] hsr_slave_1: left promiscuous mode [ 58.559337][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.559365][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.562801][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.562817][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.578228][ T12] veth1_macvtap: left promiscuous mode [ 58.578320][ T12] veth0_macvtap: left promiscuous mode [ 58.578479][ T12] veth1_vlan: left promiscuous mode [ 58.578577][ T12] veth0_vlan: left promiscuous mode [ 58.801101][ T12] team0 (unregistering): Port device team_slave_1 removed [ 58.820582][ T12] team0 (unregistering): Port device team_slave_0 removed [ 58.913617][ T5453] 8021q: adding VLAN 0 to HW filter on device eth2 [ 59.116083][ T5453] 8021q: adding VLAN 0 to HW filter on device eth3 [ 59.291985][ T5453] 8021q: adding VLAN 0 to HW filter on device eth4 [ 59.492289][ 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-build2778663619=/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 853b104bb45 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=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" ./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=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" -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=\"853b104bb454141a5b0fc0e4218ec78e9f34ffb1\" /usr/bin/ld: /tmp/ccgzaYir.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.