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]:58070' (ED25519) to the list of known hosts. 2026/02/03 12:38:40 parsed 1 programs syzkaller login: [ 89.694499][ T5308] cgroup: Unknown subsys name 'net' [ 89.772249][ T5308] cgroup: Unknown subsys name 'cpuset' [ 89.779112][ T5308] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.761430][ T5308] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.035754][ T51] cfg80211: failed to load regulatory.db [ 97.125302][ T5325] 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. [ 97.414103][ T5332] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.420204][ T5332] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.423710][ T5332] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.427401][ T5332] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.434010][ T5332] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.186646][ T5359] chnl_net:caif_netlink_parms(): no params data found [ 100.334393][ T5359] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.338262][ T5359] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.341535][ T5359] bridge_slave_0: entered allmulticast mode [ 100.358049][ T5359] bridge_slave_0: entered promiscuous mode [ 100.363521][ T5359] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.366700][ T5359] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.378206][ T5359] bridge_slave_1: entered allmulticast mode [ 100.382085][ T5359] bridge_slave_1: entered promiscuous mode [ 100.441803][ T5359] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.449242][ T5359] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.499400][ T5359] team0: Port device team_slave_0 added [ 100.510891][ T5359] team0: Port device team_slave_1 added [ 100.585841][ T5359] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.608347][ T5359] 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. [ 100.633493][ T5359] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.668027][ T5359] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.671235][ T5359] 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. [ 100.718092][ T5359] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.834028][ T5359] hsr_slave_0: entered promiscuous mode [ 100.848457][ T5359] hsr_slave_1: entered promiscuous mode [ 101.142924][ T5359] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.164276][ T5359] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.179757][ T5359] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.186099][ T5359] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.352817][ T5359] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.390746][ T5359] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.411861][ T3009] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.415329][ T3009] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.430623][ T3009] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.433975][ T3009] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.771764][ T5359] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.848633][ T5359] veth0_vlan: entered promiscuous mode [ 101.857212][ T5359] veth1_vlan: entered promiscuous mode [ 101.887562][ T5359] veth0_macvtap: entered promiscuous mode [ 101.894143][ T5359] veth1_macvtap: entered promiscuous mode [ 101.910732][ T5359] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.923804][ T5359] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.936049][ T1052] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.947329][ T1052] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.961000][ T1052] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.976600][ T1052] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.135962][ T950] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.187996][ T950] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.219197][ T950] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.282485][ T950] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.363755][ T56] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.367458][ T56] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.402726][ T3009] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.406212][ T3009] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.536175][ T950] bridge_slave_1: left allmulticast mode [ 104.550261][ T950] bridge_slave_1: left promiscuous mode [ 104.553473][ T950] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.578004][ T950] bridge_slave_0: left allmulticast mode [ 104.580596][ T950] bridge_slave_0: left promiscuous mode [ 104.583252][ T950] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.948685][ T950] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 104.957314][ T950] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 104.970140][ T950] bond0 (unregistering): Released all slaves [ 105.078502][ T950] hsr_slave_0: left promiscuous mode [ 105.097898][ T950] hsr_slave_1: left promiscuous mode [ 105.104834][ T950] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 105.111347][ T950] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 105.129014][ T950] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 105.132235][ T950] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 105.170937][ T950] veth1_macvtap: left promiscuous mode [ 105.173662][ T950] veth0_macvtap: left promiscuous mode [ 105.176218][ T950] veth1_vlan: left promiscuous mode [ 105.203924][ T950] veth0_vlan: left promiscuous mode [ 105.992635][ T950] team0 (unregistering): Port device team_slave_1 removed [ 106.019269][ T950] team0 (unregistering): Port device team_slave_0 removed 2026/02/03 12:39:01 executed programs: 0 [ 108.672585][ T4667] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 108.676925][ T4667] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 108.681916][ T4667] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 108.686614][ T4667] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 108.690581][ T4667] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 108.864633][ T5448] chnl_net:caif_netlink_parms(): no params data found [ 108.953434][ T5448] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.956755][ T5448] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.960458][ T5448] bridge_slave_0: entered allmulticast mode [ 108.964304][ T5448] bridge_slave_0: entered promiscuous mode [ 108.969391][ T5448] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.972640][ T5448] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.976004][ T5448] bridge_slave_1: entered allmulticast mode [ 108.980239][ T5448] bridge_slave_1: entered promiscuous mode [ 109.019456][ T5448] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 109.027090][ T5448] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 109.072837][ T5448] team0: Port device team_slave_0 added [ 109.077414][ T5448] team0: Port device team_slave_1 added [ 109.125164][ T5448] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 109.128440][ T5448] 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. [ 109.140352][ T5448] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 109.146187][ T5448] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 109.149733][ T5448] 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. [ 109.161547][ T5448] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 109.196817][ T5448] hsr_slave_0: entered promiscuous mode [ 109.200308][ T5448] hsr_slave_1: entered promiscuous mode [ 109.764553][ T5448] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 109.814286][ T5448] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 109.820555][ T5448] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 109.838605][ T5448] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 110.020177][ T5448] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.055789][ T5448] 8021q: adding VLAN 0 to HW filter on device team0 [ 110.097584][ T1052] bridge0: port 1(bridge_slave_0) entered blocking state [ 110.101185][ T1052] bridge0: port 1(bridge_slave_0) entered forwarding state [ 110.111201][ T1052] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.114682][ T1052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 110.462675][ T5448] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 110.535074][ T5448] veth0_vlan: entered promiscuous mode [ 110.556732][ T5448] veth1_vlan: entered promiscuous mode [ 110.612121][ T5448] veth0_macvtap: entered promiscuous mode [ 110.625208][ T5448] veth1_macvtap: entered promiscuous mode [ 110.647056][ T5448] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 110.669790][ T5448] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 110.695139][ T950] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.699728][ T950] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.711492][ T4667] Bluetooth: hci0: command tx timeout [ 110.717139][ T950] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.728470][ T950] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 110.833543][ T950] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 110.837157][ T950] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 110.894125][ T56] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 110.909411][ T56] 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) [ 112.312175][ T950] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.251463][ T950] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.710878][ T950] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.761795][ T950] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 113.899107][ T950] bridge_slave_1: left allmulticast mode [ 113.901704][ T950] bridge_slave_1: left promiscuous mode [ 113.904474][ T950] bridge0: port 2(bridge_slave_1) entered disabled state [ 113.929142][ T950] bridge_slave_0: left allmulticast mode [ 113.931627][ T950] bridge_slave_0: left promiscuous mode [ 113.934166][ T950] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.280255][ T950] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 114.285719][ T950] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 114.292276][ T950] bond0 (unregistering): Released all slaves [ 114.552576][ T950] hsr_slave_0: left promiscuous mode [ 114.559321][ T950] hsr_slave_1: left promiscuous mode [ 114.569316][ T950] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 114.572546][ T950] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 114.588903][ T950] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 114.592216][ T950] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 114.611317][ T950] veth1_macvtap: left promiscuous mode [ 114.613874][ T950] veth0_macvtap: left promiscuous mode [ 114.616398][ T950] veth1_vlan: left promiscuous mode [ 114.639604][ T950] veth0_vlan: left promiscuous mode [ 114.977494][ T950] team0 (unregistering): Port device team_slave_1 removed [ 115.001288][ T950] 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-build2011469710=/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 d1b870e1003b 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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" ./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=d1b870e1003b52891d2196c1e2ee42fe905010ba -X github.com/google/syzkaller/prog.gitRevisionDate=20251128-125159" -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=\"d1b870e1003b52891d2196c1e2ee42fe905010ba\" /usr/bin/ld: /tmp/ccLVWcWA.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