SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) Warning: Permanently added '10.128.1.122' (ED25519) to the list of known hosts. 2026/01/08 12:03:39 parsed 1 programs [ 37.890396][ T5811] cgroup: Unknown subsys name 'net' [ 38.013983][ T5811] cgroup: Unknown subsys name 'cpuset' [ 38.020613][ T5811] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 46.164463][ T5811] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 47.412538][ T5823] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 47.698435][ T5845] chnl_net:caif_netlink_parms(): no params data found [ 47.718939][ T5845] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.726211][ T5845] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.733417][ T5845] bridge_slave_0: entered allmulticast mode [ 47.739749][ T5845] bridge_slave_0: entered promiscuous mode [ 47.746359][ T5845] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.753761][ T5845] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.761047][ T5845] bridge_slave_1: entered allmulticast mode [ 47.767388][ T5845] bridge_slave_1: entered promiscuous mode [ 47.778501][ T5845] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.788980][ T5845] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.808328][ T5845] team0: Port device team_slave_0 added [ 47.814630][ T5845] team0: Port device team_slave_1 added [ 47.826437][ T5845] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 47.833698][ T5845] 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. [ 47.860670][ T5845] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 47.872776][ T5845] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 47.880149][ T5845] 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. [ 47.907257][ T5845] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 47.925253][ T5845] hsr_slave_0: entered promiscuous mode [ 47.931328][ T5845] hsr_slave_1: entered promiscuous mode [ 47.961031][ T5845] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 47.969062][ T5845] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 47.977583][ T5845] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 47.985612][ T5845] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.001505][ T5845] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.008834][ T5845] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.016368][ T5845] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.023402][ T5845] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.040908][ T5845] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.049918][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.057627][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.067489][ T5845] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.076362][ T1140] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.083765][ T1140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.093294][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.100520][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.141164][ T5845] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.156775][ T5845] veth0_vlan: entered promiscuous mode [ 48.164550][ T5845] veth1_vlan: entered promiscuous mode [ 48.176431][ T5845] veth0_macvtap: entered promiscuous mode [ 48.183937][ T5845] veth1_macvtap: entered promiscuous mode [ 48.193603][ T5845] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.203725][ T5845] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.212959][ T66] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.222196][ T66] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.231183][ T66] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.241330][ T66] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.283495][ T1153] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 48.339334][ T1153] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 48.374488][ T1153] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 48.395152][ T1153] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 48.577102][ T5904] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.584854][ T5904] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.592420][ T5904] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.601135][ T5904] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.608885][ T5904] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 48.669916][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 48.679792][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 48.690714][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 48.699241][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/01/08 12:03:51 executed programs: 0 [ 51.444359][ T1153] bridge_slave_1: left allmulticast mode [ 51.450116][ T1153] bridge_slave_1: left promiscuous mode [ 51.456519][ T1153] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.464213][ T1153] bridge_slave_0: left allmulticast mode [ 51.470012][ T1153] bridge_slave_0: left promiscuous mode [ 51.476064][ T1153] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.555190][ T1153] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.564513][ T1153] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.573505][ T1153] bond0 (unregistering): Released all slaves [ 51.665988][ T1153] hsr_slave_0: left promiscuous mode [ 51.671756][ T1153] hsr_slave_1: left promiscuous mode [ 51.677483][ T1153] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 51.685584][ T1153] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 51.693344][ T1153] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 51.700976][ T1153] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 51.710307][ T1153] veth1_macvtap: left promiscuous mode [ 51.715927][ T1153] veth0_macvtap: left promiscuous mode [ 51.721453][ T1153] veth1_vlan: left promiscuous mode [ 51.727025][ T1153] veth0_vlan: left promiscuous mode [ 51.752739][ T1153] team0 (unregistering): Port device team_slave_1 removed [ 51.761489][ T1153] team0 (unregistering): Port device team_slave_0 removed [ 54.444335][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.451974][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.459342][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.468248][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.475869][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.517671][ T5984] chnl_net:caif_netlink_parms(): no params data found [ 54.537369][ T5984] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.545142][ T5984] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.552502][ T5984] bridge_slave_0: entered allmulticast mode [ 54.559168][ T5984] bridge_slave_0: entered promiscuous mode [ 54.565988][ T5984] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.573438][ T5984] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.581165][ T5984] bridge_slave_1: entered allmulticast mode [ 54.588097][ T5984] bridge_slave_1: entered promiscuous mode [ 54.600363][ T5984] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.611003][ T5984] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.625484][ T5984] team0: Port device team_slave_0 added [ 54.631829][ T5984] team0: Port device team_slave_1 added [ 54.641911][ T5984] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.649386][ T5984] 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. [ 54.677938][ T5984] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.689525][ T5984] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.697023][ T5984] 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. [ 54.723860][ T5984] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.740763][ T5984] hsr_slave_0: entered promiscuous mode [ 54.746734][ T5984] hsr_slave_1: entered promiscuous mode [ 54.925832][ T5984] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.934874][ T5984] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.943129][ T5984] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.952194][ T5984] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.967486][ T5984] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.975379][ T5984] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.983116][ T5984] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.990494][ T5984] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.015687][ T5984] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.026512][ T5984] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.034301][ T1153] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.042563][ T1153] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.060203][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.067403][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.077059][ T1153] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.084847][ T1153] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.151037][ T5984] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.177275][ T5984] veth0_vlan: entered promiscuous mode [ 55.184669][ T5984] veth1_vlan: entered promiscuous mode [ 55.196572][ T5984] veth0_macvtap: entered promiscuous mode [ 55.208563][ T5984] veth1_macvtap: entered promiscuous mode [ 55.219988][ T5984] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.230110][ T5984] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.241314][ T31] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.254064][ T31] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.267385][ T31] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.279390][ T31] netdevsim netdevsim0 netdevsim3: 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) [ 55.296674][ T31] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.309456][ T31] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.321968][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.333640][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build2276367867=/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='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e 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=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./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=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -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_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"d6526ea3e6ad9081c902859bbb80f9f840377cb4\" /usr/bin/ld: /tmp/cckm5W6G.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): 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