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 '[localhost]:60275' (ED25519) to the list of known hosts. 2026/02/22 11:41:12 parsed 1 programs syzkaller login: [ 89.446479][ T5304] cgroup: Unknown subsys name 'net' [ 89.496478][ T5304] cgroup: Unknown subsys name 'cpuset' [ 89.502532][ T5304] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.217846][ T5304] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 96.633395][ T5319] 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. [ 97.141602][ T10] cfg80211: failed to load regulatory.db [ 99.618496][ T5353] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.623217][ T5353] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.627149][ T5353] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.633041][ T5353] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.636548][ T5353] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 102.506033][ T5380] chnl_net:caif_netlink_parms(): no params data found [ 102.567210][ T5380] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.571327][ T5380] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.574447][ T5380] bridge_slave_0: entered allmulticast mode [ 102.578231][ T5380] bridge_slave_0: entered promiscuous mode [ 102.584235][ T5380] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.588076][ T5380] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.591958][ T5380] bridge_slave_1: entered allmulticast mode [ 102.595606][ T5380] bridge_slave_1: entered promiscuous mode [ 102.622114][ T5380] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.628518][ T5380] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.651627][ T5380] team0: Port device team_slave_0 added [ 102.655924][ T5380] team0: Port device team_slave_1 added [ 102.673681][ T5380] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.676856][ T5380] 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. [ 102.688734][ T5380] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.696322][ T5380] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.700628][ T5380] 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. [ 102.712971][ T5380] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.747734][ T5380] hsr_slave_0: entered promiscuous mode [ 102.751464][ T5380] hsr_slave_1: entered promiscuous mode [ 102.915877][ T5380] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.950149][ T5380] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.956658][ T5380] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.964552][ T5380] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.006380][ T5380] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.009698][ T5380] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.013524][ T5380] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.016998][ T5380] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.077154][ T5380] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.093361][ T134] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.097296][ T134] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.107226][ T5380] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.118564][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.121837][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.153664][ T134] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.156945][ T134] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.404517][ T5380] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.452881][ T5380] veth0_vlan: entered promiscuous mode [ 103.463319][ T5380] veth1_vlan: entered promiscuous mode [ 103.498137][ T5380] veth0_macvtap: entered promiscuous mode [ 103.514486][ T5380] veth1_macvtap: entered promiscuous mode [ 103.550935][ T5380] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.566003][ T5380] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.587815][ T134] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.600789][ T134] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.604621][ T134] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.608525][ T134] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.820484][ T134] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.862278][ T134] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.901420][ T134] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.952723][ T134] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.018678][ T42] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.039573][ T42] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.076827][ T42] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.084848][ T42] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/02/22 11:41:31 executed programs: 0 [ 105.728534][ T4662] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 105.733980][ T4662] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 105.737559][ T4662] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 105.750864][ T4662] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 105.754316][ T4662] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 106.041753][ T134] bridge_slave_1: left allmulticast mode [ 106.045727][ T134] bridge_slave_1: left promiscuous mode [ 106.060066][ T134] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.068127][ T134] bridge_slave_0: left allmulticast mode [ 106.072312][ T134] bridge_slave_0: left promiscuous mode [ 106.075433][ T134] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.206980][ T134] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 106.217301][ T134] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 106.223389][ T134] bond0 (unregistering): Released all slaves [ 106.329111][ T134] hsr_slave_0: left promiscuous mode [ 106.346568][ T134] hsr_slave_1: left promiscuous mode [ 106.356970][ T134] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 106.363232][ T134] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 106.379323][ T134] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 106.383656][ T134] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 106.404028][ T134] veth1_macvtap: left promiscuous mode [ 106.406453][ T134] veth0_macvtap: left promiscuous mode [ 106.410752][ T134] veth1_vlan: left promiscuous mode [ 106.412791][ T134] veth0_vlan: left promiscuous mode [ 106.723603][ T134] team0 (unregistering): Port device team_slave_1 removed [ 106.740654][ T134] team0 (unregistering): Port device team_slave_0 removed [ 106.845511][ T5416] chnl_net:caif_netlink_parms(): no params data found [ 107.077684][ T5416] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.085156][ T5416] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.088416][ T5416] bridge_slave_0: entered allmulticast mode [ 107.101725][ T5416] bridge_slave_0: entered promiscuous mode [ 107.299472][ T5416] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.329096][ T5416] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.333346][ T5416] bridge_slave_1: entered allmulticast mode [ 107.361356][ T5416] bridge_slave_1: entered promiscuous mode [ 107.454935][ T5416] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 107.471519][ T5416] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 107.571385][ T5416] team0: Port device team_slave_0 added [ 107.580170][ T5416] team0: Port device team_slave_1 added [ 107.659050][ T5416] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 107.662140][ T5416] 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. [ 107.689381][ T5416] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 107.721810][ T5416] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 107.724868][ T5416] 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. [ 107.760479][ T5416] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.772991][ T5353] Bluetooth: hci0: command tx timeout [ 107.839479][ T5416] hsr_slave_0: entered promiscuous mode [ 107.856012][ T5416] hsr_slave_1: entered promiscuous mode [ 108.365735][ T5416] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 108.382839][ T5416] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 108.407726][ T5416] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 108.418805][ T5416] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 108.587064][ T5416] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.622957][ T5416] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.640926][ T134] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.644143][ T134] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.660953][ T71] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.664154][ T71] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.723309][ T5416] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 108.996598][ T5416] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.076262][ T5416] veth0_vlan: entered promiscuous mode [ 109.092296][ T5416] veth1_vlan: entered promiscuous mode [ 109.136298][ T5416] veth0_macvtap: entered promiscuous mode [ 109.157610][ T5416] veth1_macvtap: entered promiscuous mode [ 109.200774][ T5416] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.216635][ T5416] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 109.241627][ T134] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.261685][ T134] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.265647][ T134] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.279154][ T134] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.380781][ T134] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.384275][ T134] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 109.441532][ T71] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 109.445006][ T71] 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) [ 110.584484][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.599482][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.299711][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.322413][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.437296][ T155] bridge_slave_1: left allmulticast mode [ 112.441271][ T155] bridge_slave_1: left promiscuous mode [ 112.443840][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.450890][ T155] bridge_slave_0: left allmulticast mode [ 112.453217][ T155] bridge_slave_0: left promiscuous mode [ 112.455818][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.573233][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 112.579525][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 112.583979][ T155] bond0 (unregistering): Released all slaves [ 112.792356][ T155] hsr_slave_0: left promiscuous mode [ 112.801000][ T155] hsr_slave_1: left promiscuous mode [ 112.808200][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 112.821229][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 112.829623][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 112.832975][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 112.861281][ T155] veth1_macvtap: left promiscuous mode [ 112.863857][ T155] veth0_macvtap: left promiscuous mode [ 112.866452][ T155] veth1_vlan: left promiscuous mode [ 112.868828][ T155] veth0_vlan: left promiscuous mode [ 113.103861][ T155] team0 (unregistering): Port device team_slave_1 removed [ 113.116053][ T155] team0 (unregistering): Port device team_slave_0 removed 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-build1062965485=/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='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at bf6fe8fef08f 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=bf6fe8fef08f3e0d8c066121c66eaf37681e0de9 -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-085549" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=bf6fe8fef08f3e0d8c066121c66eaf37681e0de9 -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-085549" ./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=bf6fe8fef08f3e0d8c066121c66eaf37681e0de9 -X github.com/google/syzkaller/prog.gitRevisionDate=20251124-085549" -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=\"bf6fe8fef08f3e0d8c066121c66eaf37681e0de9\" /usr/bin/ld: /tmp/ccckdgRI.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