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 '10.128.1.143' (ED25519) to the list of known hosts. 2026/03/08 11:05:07 parsed 1 programs [ 89.695702][ T5772] cgroup: Unknown subsys name 'net' [ 89.873481][ T5772] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.701515][ T5772] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 95.482299][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.499188][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.550944][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.563140][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.571182][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.597347][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.610072][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.627274][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.650565][ T51] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 97.662509][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.909456][ T42] cfg80211: failed to load regulatory.db [ 98.116969][ T5854] chnl_net:caif_netlink_parms(): no params data found [ 98.238208][ T5854] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.249029][ T5854] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.257898][ T5854] bridge_slave_0: entered allmulticast mode [ 98.266273][ T5854] bridge_slave_0: entered promiscuous mode [ 98.277438][ T5854] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.285745][ T5854] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.293690][ T5854] bridge_slave_1: entered allmulticast mode [ 98.303483][ T5854] bridge_slave_1: entered promiscuous mode [ 98.346641][ T5854] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.359363][ T5854] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.419844][ T5854] team0: Port device team_slave_0 added [ 98.432398][ T5854] team0: Port device team_slave_1 added [ 98.467077][ T5854] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.477121][ T5854] 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 1560 would solve the problem. [ 98.513682][ T5854] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.531067][ T5854] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.539071][ T5854] 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 1560 would solve the problem. [ 98.570830][ T5854] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.625903][ T5854] hsr_slave_0: entered promiscuous mode [ 98.633666][ T5854] hsr_slave_1: entered promiscuous mode [ 98.808130][ T5854] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 98.819708][ T5854] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 98.832401][ T5854] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 98.873227][ T5854] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 98.921443][ T5854] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.929842][ T5854] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.938720][ T5854] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.946835][ T5854] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.005982][ T5854] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.036792][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.047137][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.070994][ T5854] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.101403][ T59] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.112826][ T59] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.151867][ T3493] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.161042][ T3493] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.386452][ T5854] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.435647][ T5854] veth0_vlan: entered promiscuous mode [ 99.448693][ T5854] veth1_vlan: entered promiscuous mode [ 99.486384][ T5854] veth0_macvtap: entered promiscuous mode [ 99.498015][ T5854] veth1_macvtap: entered promiscuous mode [ 99.539054][ T5854] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.559768][ T5854] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.579892][ T5854] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.590166][ T5854] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.599981][ T5854] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.611247][ T5854] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.801076][ T5854] syz-executor (5854) used greatest stack depth: 20520 bytes left [ 99.884722][ T41] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/03/08 11:05:19 executed programs: 0 [ 100.265945][ T5083] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.277685][ T5083] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.291465][ T5083] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.304709][ T5083] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.317385][ T5083] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 100.330830][ T5083] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.460596][ T5874] chnl_net:caif_netlink_parms(): no params data found [ 100.535563][ T5874] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.545037][ T5874] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.557071][ T5874] bridge_slave_0: entered allmulticast mode [ 100.566680][ T5874] bridge_slave_0: entered promiscuous mode [ 100.577002][ T5874] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.585630][ T5874] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.593789][ T5874] bridge_slave_1: entered allmulticast mode [ 100.602270][ T5874] bridge_slave_1: entered promiscuous mode [ 100.644780][ T5874] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.660187][ T5874] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.708875][ T5874] team0: Port device team_slave_0 added [ 100.718108][ T5874] team0: Port device team_slave_1 added [ 100.750314][ T5874] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.759769][ T5874] 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 1560 would solve the problem. [ 100.796624][ T5874] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.816201][ T5874] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.831406][ T5874] 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 1560 would solve the problem. [ 100.864702][ T5874] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.921522][ T5874] hsr_slave_0: entered promiscuous mode [ 100.929877][ T5874] hsr_slave_1: entered promiscuous mode [ 100.938592][ T5874] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 100.951230][ T5874] Cannot create hsr debugfs directory [ 102.260528][ T41] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.386261][ T5083] Bluetooth: hci0: command tx timeout [ 104.466708][ T5083] Bluetooth: hci0: command tx timeout [ 104.503668][ T41] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.582431][ T41] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.523356][ T5874] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 105.579722][ T5874] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 105.603706][ T5874] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 105.627589][ T5874] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 105.752520][ T41] hsr_slave_0: left promiscuous mode [ 105.763662][ T41] hsr_slave_1: left promiscuous mode [ 105.774996][ T41] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 105.790709][ T41] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 105.803479][ T41] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 105.816444][ T41] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 105.826829][ T41] bridge_slave_1: left allmulticast mode [ 105.833685][ T41] bridge_slave_1: left promiscuous mode [ 105.843306][ T41] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.862767][ T41] bridge_slave_0: left allmulticast mode [ 105.877754][ T41] bridge_slave_0: left promiscuous mode [ 105.886639][ T41] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.931863][ T41] veth1_macvtap: left promiscuous mode [ 105.944503][ T41] veth0_macvtap: left promiscuous mode [ 105.952681][ T41] veth1_vlan: left promiscuous mode [ 105.962788][ T41] veth0_vlan: left promiscuous mode [ 106.536652][ T41] team0 (unregistering): Port device team_slave_1 removed [ 106.555310][ T5083] Bluetooth: hci0: command tx timeout [ 106.598249][ T41] team0 (unregistering): Port device team_slave_0 removed [ 106.649353][ T41] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 106.689542][ T41] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 107.244027][ T41] bond0 (unregistering): Released all slaves [ 107.382069][ T5874] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.411146][ T5874] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.432966][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.443172][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.478425][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.488305][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.839480][ T5874] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.913639][ T5874] veth0_vlan: entered promiscuous mode [ 107.928288][ T5874] veth1_vlan: entered promiscuous mode [ 107.966707][ T5874] veth0_macvtap: entered promiscuous mode [ 107.977987][ T5874] veth1_macvtap: entered promiscuous mode [ 107.998511][ T5874] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 108.017244][ T5874] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 108.030996][ T5874] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.042092][ T5874] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.052214][ T5874] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.063499][ T5874] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.153782][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.174672][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.204441][ T3493] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.217178][ T3493] 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-build3606566472=/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 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/ccxKNkDB.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