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 '10.128.0.176' (ED25519) to the list of known hosts. 2026/05/23 14:59:34 parsed 1 programs [ 88.649577][ T5632] cgroup: Unknown subsys name 'net' [ 88.760836][ T5632] cgroup: Unknown subsys name 'cpuset' [ 88.770580][ T5632] cgroup: Unknown subsys name 'rlimit' [ 88.776281][ T5632] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 90.437848][ T5632] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.930616][ T10] cfg80211: failed to load regulatory.db [ 94.826041][ T5663] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.833426][ T5663] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.841289][ T5663] bridge_slave_0: entered allmulticast mode [ 94.848907][ T5663] bridge_slave_0: entered promiscuous mode [ 94.859812][ T5663] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.867072][ T5663] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.874257][ T5663] bridge_slave_1: entered allmulticast mode [ 94.881867][ T5663] bridge_slave_1: entered promiscuous mode [ 94.914990][ T5663] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.927479][ T5663] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.962190][ T5663] team0: Port device team_slave_0 added [ 94.973301][ T5663] team0: Port device team_slave_1 added [ 95.003574][ T5663] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.010705][ T5663] 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. [ 95.036765][ T5663] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.049538][ T5663] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.056561][ T5663] 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. [ 95.082571][ T5663] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.130304][ T5663] hsr_slave_0: entered promiscuous mode [ 95.137189][ T5663] hsr_slave_1: entered promiscuous mode [ 95.300071][ T5663] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 95.313848][ T5663] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 95.322328][ T5663] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 95.331911][ T5663] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 95.340225][ T5663] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 95.352587][ T5663] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 95.362513][ T5663] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 95.373412][ T5663] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 95.404729][ T5663] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.412338][ T5663] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.420309][ T5663] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.427552][ T5663] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.491331][ T5663] 8021q: adding VLAN 0 to HW filter on device bond0 [ 95.513638][ T1144] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.522734][ T1144] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.540841][ T5663] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.556294][ T134] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.563503][ T134] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.578514][ T134] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.585678][ T134] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.947226][ T5663] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.007520][ T5663] veth0_vlan: entered promiscuous mode [ 96.019945][ T5663] veth1_vlan: entered promiscuous mode [ 96.054514][ T5663] veth0_macvtap: entered promiscuous mode [ 96.064822][ T5663] veth1_macvtap: entered promiscuous mode [ 96.085849][ T5663] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.102663][ T5663] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.119482][ T134] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.129435][ T134] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.143550][ T134] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.152513][ T134] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.299586][ T134] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.387197][ T134] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.450541][ T134] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.524813][ T134] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.852005][ T1144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.860069][ T1144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.901148][ T71] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.909593][ T71] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.284372][ T5743] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.294923][ T5743] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.302828][ T5743] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.313866][ T5743] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.324144][ T5743] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.538576][ T134] bridge_slave_1: left allmulticast mode [ 98.544410][ T134] bridge_slave_1: left promiscuous mode [ 98.551379][ T134] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.562406][ T134] bridge_slave_0: left allmulticast mode [ 98.568820][ T134] bridge_slave_0: left promiscuous mode [ 98.575008][ T134] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.712520][ T134] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 98.724066][ T134] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 98.734854][ T134] bond0 (unregistering): Released all slaves [ 98.882393][ T134] hsr_slave_0: left promiscuous mode [ 98.907707][ T134] hsr_slave_1: left promiscuous mode [ 98.925879][ T134] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 98.940108][ T134] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 98.975895][ T134] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 98.985355][ T134] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 99.009371][ T134] veth1_macvtap: left promiscuous mode [ 99.015370][ T134] veth0_macvtap: left promiscuous mode [ 99.023408][ T134] veth1_vlan: left promiscuous mode [ 99.028917][ T134] veth0_vlan: left promiscuous mode [ 99.350728][ T134] team0 (unregistering): Port device team_slave_1 removed [ 99.376715][ T134] team0 (unregistering): Port device team_slave_0 removed [ 99.517996][ T5281] 8021q: adding VLAN 0 to HW filter on device eth1 2026/05/23 14:59:49 executed programs: 0 [ 100.254135][ T5743] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.266656][ T5743] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.274824][ T5743] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.284804][ T5743] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.294099][ T5743] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.792987][ T5281] 8021q: adding VLAN 0 to HW filter on device eth2 [ 101.523109][ T5281] 8021q: adding VLAN 0 to HW filter on device eth3 [ 101.895123][ T5779] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.902629][ T5779] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.913197][ T5779] bridge_slave_0: entered allmulticast mode [ 101.921535][ T5779] bridge_slave_0: entered promiscuous mode [ 101.931969][ T5779] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.939531][ T5779] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.947061][ T5779] bridge_slave_1: entered allmulticast mode [ 101.955176][ T5779] bridge_slave_1: entered promiscuous mode [ 102.012861][ T5779] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.027392][ T5779] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.129111][ T5779] team0: Port device team_slave_0 added [ 102.156059][ T5779] team0: Port device team_slave_1 added [ 102.223100][ T5281] 8021q: adding VLAN 0 to HW filter on device eth4 [ 102.256500][ T5779] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.270073][ T5779] 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. [ 102.310934][ T5779] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.327803][ T5743] Bluetooth: hci0: command tx timeout [ 102.335358][ T5779] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.342932][ T5779] 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. [ 102.369841][ T5779] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.442325][ T5779] hsr_slave_0: entered promiscuous mode [ 102.453336][ T5779] hsr_slave_1: entered promiscuous mode [ 103.084207][ T5779] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.097207][ T5779] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 103.105527][ T5779] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 103.118827][ T5779] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 103.131463][ T5779] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 103.144315][ T5779] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 103.152945][ T5779] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.165355][ T5779] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 103.270682][ T5779] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.300178][ T5779] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.319904][ T134] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.327186][ T134] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.350124][ T134] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.357350][ T134] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.895304][ T5779] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.979645][ T5779] veth0_vlan: entered promiscuous mode [ 104.002873][ T5779] veth1_vlan: entered promiscuous mode [ 104.046493][ T5779] veth0_macvtap: entered promiscuous mode [ 104.059504][ T5779] veth1_macvtap: entered promiscuous mode [ 104.085791][ T5779] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.108880][ T5779] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.129426][ T3285] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.150662][ T3285] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.161590][ T3285] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.172784][ T3285] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.265820][ T1144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.281958][ T1144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.335587][ T1144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.344927][ T1144] 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) [ 104.412154][ T5743] Bluetooth: hci0: command tx timeout 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-build1671012699=/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 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/ccaWcXM7.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