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]:55198' (ED25519) to the list of known hosts. 2025/12/20 11:14:36 parsed 1 programs syzkaller login: [ 91.334591][ T5320] cgroup: Unknown subsys name 'net' [ 91.419733][ T5320] cgroup: Unknown subsys name 'cpuset' [ 91.425677][ T5320] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 93.250767][ T5320] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 96.983982][ T10] cfg80211: failed to load regulatory.db [ 99.610126][ T5336] 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. [ 102.352345][ T5361] chnl_net:caif_netlink_parms(): no params data found [ 102.421045][ T5361] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.425328][ T5361] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.429817][ T5361] bridge_slave_0: entered allmulticast mode [ 102.433847][ T5361] bridge_slave_0: entered promiscuous mode [ 102.441540][ T5361] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.444896][ T5361] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.449104][ T5361] bridge_slave_1: entered allmulticast mode [ 102.454628][ T5361] bridge_slave_1: entered promiscuous mode [ 102.480018][ T5361] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.486659][ T5361] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.510051][ T5361] team0: Port device team_slave_0 added [ 102.514648][ T5361] team0: Port device team_slave_1 added [ 102.534307][ T5361] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.537847][ T5361] 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. [ 102.549393][ T5361] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.556969][ T5361] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.560057][ T5361] 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. [ 102.571697][ T5361] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.608201][ T5361] hsr_slave_0: entered promiscuous mode [ 102.611445][ T5361] hsr_slave_1: entered promiscuous mode [ 102.753915][ T5361] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.764146][ T5361] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.770484][ T5361] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.778100][ T5361] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.808432][ T5361] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.811704][ T5361] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.815711][ T5361] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.818872][ T5361] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.873829][ T5361] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.890247][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.894742][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.912170][ T5361] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.923159][ T2950] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.926503][ T2950] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.937785][ T31] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.941147][ T31] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.129510][ T5361] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.169600][ T5361] veth0_vlan: entered promiscuous mode [ 103.179084][ T5361] veth1_vlan: entered promiscuous mode [ 103.207790][ T5361] veth0_macvtap: entered promiscuous mode [ 103.213972][ T5361] veth1_macvtap: entered promiscuous mode [ 103.233525][ T5361] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.244030][ T5361] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.257830][ T31] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.271141][ T31] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.275765][ T31] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.291130][ T31] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.528513][ T2950] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.608312][ T2950] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.684876][ T2950] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.759440][ T2950] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.457095][ T4156] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.460477][ T4156] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.546963][ T4156] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.550761][ T4156] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.157615][ T2950] bridge_slave_1: left allmulticast mode [ 106.160393][ T2950] bridge_slave_1: left promiscuous mode [ 106.163404][ T2950] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.209441][ T2950] bridge_slave_0: left allmulticast mode [ 106.212053][ T2950] bridge_slave_0: left promiscuous mode [ 106.215363][ T2950] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.709871][ T2950] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 106.722862][ T2950] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 106.728119][ T2950] bond0 (unregistering): Released all slaves [ 106.865955][ T2950] hsr_slave_0: left promiscuous mode [ 106.869056][ T2950] hsr_slave_1: left promiscuous mode [ 106.871992][ T2950] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 106.875485][ T2950] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 106.887916][ T2950] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 106.891268][ T2950] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 106.920239][ T2950] veth1_macvtap: left promiscuous mode [ 106.923048][ T2950] veth0_macvtap: left promiscuous mode [ 106.926391][ T2950] veth1_vlan: left promiscuous mode [ 106.946493][ T2950] veth0_vlan: left promiscuous mode [ 107.384920][ T2950] team0 (unregistering): Port device team_slave_1 removed [ 107.405030][ T2950] team0 (unregistering): Port device team_slave_0 removed [ 108.014056][ T4678] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 108.018872][ T4678] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 108.022586][ T4678] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 108.030525][ T4678] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 108.034251][ T4678] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2025/12/20 11:14:58 executed programs: 0 [ 110.788859][ T46] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 110.792635][ T46] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 110.796493][ T46] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 110.800893][ T46] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 110.804474][ T46] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 111.103346][ T5463] chnl_net:caif_netlink_parms(): no params data found [ 111.181398][ T5463] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.184688][ T5463] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.189441][ T5463] bridge_slave_0: entered allmulticast mode [ 111.193303][ T5463] bridge_slave_0: entered promiscuous mode [ 111.198151][ T5463] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.201338][ T5463] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.204515][ T5463] bridge_slave_1: entered allmulticast mode [ 111.208809][ T5463] bridge_slave_1: entered promiscuous mode [ 111.233936][ T5463] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.240542][ T5463] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.292396][ T5463] team0: Port device team_slave_0 added [ 111.297604][ T5463] team0: Port device team_slave_1 added [ 111.318651][ T5463] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.321724][ T5463] 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. [ 111.334265][ T5463] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.340716][ T5463] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.343724][ T5463] 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. [ 111.355483][ T5463] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 111.395416][ T5463] hsr_slave_0: entered promiscuous mode [ 111.399266][ T5463] hsr_slave_1: entered promiscuous mode [ 111.999654][ T5463] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 112.018728][ T5463] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 112.024880][ T5463] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 112.048207][ T5463] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 112.100415][ T5463] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.103725][ T5463] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.107218][ T5463] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.110373][ T5463] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.117964][ T2950] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.121644][ T2950] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.238019][ T5463] 8021q: adding VLAN 0 to HW filter on device bond0 [ 112.269931][ T5463] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.281190][ T2950] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.284341][ T2950] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.308731][ T2950] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.311914][ T2950] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.665419][ T5463] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 112.746801][ T5463] veth0_vlan: entered promiscuous mode [ 112.762034][ T5463] veth1_vlan: entered promiscuous mode [ 112.821766][ T46] Bluetooth: hci0: command tx timeout [ 112.833187][ T5463] veth0_macvtap: entered promiscuous mode [ 112.843611][ T5463] veth1_macvtap: entered promiscuous mode [ 112.875296][ T5463] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 112.900310][ T5463] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 112.922801][ T2950] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.931716][ T2950] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.951302][ T2950] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.955048][ T2950] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.096856][ T4156] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 113.100209][ T4156] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 113.203227][ T121] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 113.210551][ T121] 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) [ 114.480962][ T2950] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 115.617406][ T2950] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 115.897510][ T2950] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 115.939889][ T2950] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.068978][ T2950] bridge_slave_1: left allmulticast mode [ 116.071563][ T2950] bridge_slave_1: left promiscuous mode [ 116.074350][ T2950] bridge0: port 2(bridge_slave_1) entered disabled state [ 116.089011][ T2950] bridge_slave_0: left allmulticast mode [ 116.091561][ T2950] bridge_slave_0: left promiscuous mode [ 116.094904][ T2950] bridge0: port 1(bridge_slave_0) entered disabled state [ 116.482355][ T2950] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 116.488253][ T2950] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 116.493126][ T2950] bond0 (unregistering): Released all slaves [ 116.730386][ T2950] hsr_slave_0: left promiscuous mode [ 116.739642][ T2950] hsr_slave_1: left promiscuous mode [ 116.746644][ T2950] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 116.749921][ T2950] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 116.768744][ T2950] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 116.772210][ T2950] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 116.793142][ T2950] veth1_macvtap: left promiscuous mode [ 116.795610][ T2950] veth0_macvtap: left promiscuous mode [ 116.808114][ T2950] veth1_vlan: left promiscuous mode [ 116.810534][ T2950] veth0_vlan: left promiscuous mode [ 117.117864][ T2950] team0 (unregistering): Port device team_slave_1 removed [ 117.135297][ T2950] 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-build2895398349=/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/ccpEOXJG.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