SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) no interfaces have a carrier [ 62.478874][ T5261] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.502938][ T5261] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts. 2026/08/17 12:59:51 parsed 1 programs syzkaller login: [ 97.508535][ T24] cfg80211: failed to load regulatory.db [ 98.444157][ T5612] cgroup: Unknown subsys name 'net' [ 98.560698][ T5612] cgroup: Unknown subsys name 'cpuset' [ 98.570719][ T5612] cgroup: Unknown subsys name 'rlimit' [ 98.577993][ T5612] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 100.248281][ T5612] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 104.766177][ T4917] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.775185][ T4917] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.783980][ T4917] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.792735][ T4917] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.807184][ T4917] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 105.921008][ T5662] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.929195][ T5662] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.937806][ T5662] bridge_slave_0: entered allmulticast mode [ 105.946005][ T5662] bridge_slave_0: entered promiscuous mode [ 105.956735][ T5662] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.964241][ T5662] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.971947][ T5662] bridge_slave_1: entered allmulticast mode [ 105.979466][ T5662] bridge_slave_1: entered promiscuous mode [ 106.016806][ T5662] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.030460][ T5662] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.077907][ T5662] team0: Port device team_slave_0 added [ 106.086469][ T5662] team0: Port device team_slave_1 added [ 106.120104][ T5662] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.127645][ 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. [ 106.155295][ T5662] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.169051][ T5662] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.176265][ 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. [ 106.203291][ T5662] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 106.254917][ T5662] hsr_slave_0: entered promiscuous mode [ 106.262686][ T5662] hsr_slave_1: entered promiscuous mode [ 106.433925][ T5662] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.447710][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 106.457985][ T5662] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.470939][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 106.478880][ T5662] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 106.490014][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 106.502561][ T5662] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 106.513439][ T5662] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 106.547848][ T5662] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.556036][ T5662] bridge0: port 2(bridge_slave_1) entered forwarding state [ 106.564333][ T5662] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.572971][ T5662] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.652733][ T5662] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.678944][ T142] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.689208][ T142] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.709862][ T5662] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.727581][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.735130][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.749831][ T142] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.757359][ T142] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.153242][ T5662] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.213140][ T5662] veth0_vlan: entered promiscuous mode [ 107.230536][ T5662] veth1_vlan: entered promiscuous mode [ 107.271378][ T5662] veth0_macvtap: entered promiscuous mode [ 107.284358][ T5662] veth1_macvtap: entered promiscuous mode [ 107.309208][ T5662] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.328844][ T5662] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.397347][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.409082][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.437888][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.461622][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.546631][ T35] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 107.624450][ T35] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 107.673810][ T35] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 107.765194][ T35] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 108.025057][ T142] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.036618][ T142] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.077303][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.087720][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/08/17 13:00:05 executed programs: 0 [ 109.188516][ T4917] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 109.200570][ T4917] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 109.210598][ T4917] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 109.221013][ T4917] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 109.230438][ T4917] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 109.495567][ T35] bridge_slave_1: left allmulticast mode [ 109.502944][ T35] bridge_slave_1: left promiscuous mode [ 109.510611][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.529520][ T35] bridge_slave_0: left allmulticast mode [ 109.535528][ T35] bridge_slave_0: left promiscuous mode [ 109.542058][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.714940][ T35] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 109.729894][ T35] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 109.742020][ T35] bond0 (unregistering): Released all slaves [ 109.860550][ T35] hsr_slave_0: left promiscuous mode [ 109.867115][ T35] hsr_slave_1: left promiscuous mode [ 109.874380][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 109.883098][ T35] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 109.893136][ T35] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 109.900650][ T35] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 109.921898][ T35] veth1_macvtap: left promiscuous mode [ 109.929077][ T35] veth0_macvtap: left promiscuous mode [ 109.935634][ T35] veth1_vlan: left promiscuous mode [ 109.941841][ T35] veth0_vlan: left promiscuous mode [ 110.436210][ T35] team0 (unregistering): Port device team_slave_1 removed [ 110.483398][ T35] team0 (unregistering): Port device team_slave_0 removed [ 110.666740][ T5261] 8021q: adding VLAN 0 to HW filter on device eth1 [ 111.184989][ T5729] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.199092][ T5729] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.209618][ T5729] bridge_slave_0: entered allmulticast mode [ 111.221101][ T5729] bridge_slave_0: entered promiscuous mode [ 111.270590][ T4917] Bluetooth: hci0: command tx timeout [ 111.540284][ T5729] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.548346][ T5729] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.557917][ T5729] bridge_slave_1: entered allmulticast mode [ 111.568255][ T5729] bridge_slave_1: entered promiscuous mode [ 111.603856][ T5261] 8021q: adding VLAN 0 to HW filter on device eth2 [ 111.655475][ T5729] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.670746][ T5729] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.776771][ T5729] team0: Port device team_slave_0 added [ 111.788862][ T5729] team0: Port device team_slave_1 added [ 111.901634][ T5729] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.909200][ T5729] 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. [ 111.942340][ T5729] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.964584][ T5729] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.973176][ T5729] 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. [ 112.002317][ T5729] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 112.164699][ T5729] hsr_slave_0: entered promiscuous mode [ 112.187238][ T5729] hsr_slave_1: entered promiscuous mode [ 112.482712][ T5261] 8021q: adding VLAN 0 to HW filter on device eth3 [ 112.808560][ T5729] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 112.832609][ T5729] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 112.841014][ T5729] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 112.852268][ T5729] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 112.862060][ T5729] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 112.874172][ T5729] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 112.883749][ T5729] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 112.895358][ T5729] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 113.014718][ T5729] 8021q: adding VLAN 0 to HW filter on device bond0 [ 113.045114][ T5729] 8021q: adding VLAN 0 to HW filter on device team0 [ 113.064447][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 113.071719][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 113.098771][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 113.106548][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 113.345946][ T4917] Bluetooth: hci0: command tx timeout [ 113.690281][ T5729] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 113.763156][ T5729] veth0_vlan: entered promiscuous mode [ 113.782766][ T5729] veth1_vlan: entered promiscuous mode [ 113.822907][ T5729] veth0_macvtap: entered promiscuous mode [ 113.834756][ T5729] veth1_macvtap: entered promiscuous mode [ 113.861705][ T5729] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 113.880459][ T5729] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 113.918260][ T1116] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.961603][ T1116] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.975196][ T1116] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.996383][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.080649][ T35] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.106921][ T35] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 114.157138][ T1116] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.169040][ T1116] 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) 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-build2892001292=/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 d6526ea3e6a 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/ccF3wWtd.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): 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