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 '10.128.0.7' (ED25519) to the list of known hosts. [ 86.555593][ T30] cfg80211: failed to load regulatory.db 2026/09/04 23:24:44 parsed 1 programs [ 94.756169][ T5625] cgroup: Unknown subsys name 'net' [ 94.888121][ T5625] cgroup: Unknown subsys name 'cpuset' [ 94.896668][ T5625] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 96.636701][ T5625] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 100.519136][ T5639] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.519873][ T5639] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.520409][ T5639] bridge_slave_0: entered allmulticast mode [ 100.523666][ T5639] bridge_slave_0: entered promiscuous mode [ 100.529372][ T5639] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.529579][ T5639] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.529736][ T5639] bridge_slave_1: entered allmulticast mode [ 100.532403][ T5639] bridge_slave_1: entered promiscuous mode [ 100.588654][ T5639] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.593223][ T5639] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.633082][ T5639] team0: Port device team_slave_0 added [ 100.636627][ T5639] team0: Port device team_slave_1 added [ 100.674643][ T5639] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.674685][ T5639] 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. [ 100.674735][ T5639] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.678572][ T5639] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.678594][ T5639] 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. [ 100.678639][ T5639] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.790253][ T5639] hsr_slave_0: entered promiscuous mode [ 100.791778][ T5639] hsr_slave_1: entered promiscuous mode [ 100.999899][ T5639] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.013640][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 101.015389][ T5639] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.028992][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 101.038730][ T5639] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.048836][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 101.056187][ T5639] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.070445][ T5639] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 101.106507][ T5639] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.106671][ T5639] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.107348][ T5639] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.107747][ T5639] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.197110][ T5639] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.221394][ T38] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.229757][ T38] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.252498][ T5639] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.262292][ T38] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.262581][ T38] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.281781][ T74] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.281921][ T74] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.778330][ T5639] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.838154][ T5639] veth0_vlan: entered promiscuous mode [ 101.847941][ T5639] veth1_vlan: entered promiscuous mode [ 101.883049][ T5639] veth0_macvtap: entered promiscuous mode [ 101.895966][ T5639] veth1_macvtap: entered promiscuous mode [ 101.919289][ T5639] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.926993][ T5639] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.977359][ T59] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.013225][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.013356][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.014415][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.071216][ T5639] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 102.321652][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.125945][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.960267][ T5706] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 103.963541][ T5706] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 103.964410][ T5706] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 103.965515][ T5706] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 103.966295][ T5706] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.188191][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.747442][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.128911][ T12] bridge_slave_1: left allmulticast mode [ 105.128999][ T12] bridge_slave_1: left promiscuous mode [ 105.131234][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.160352][ T12] bridge_slave_0: left allmulticast mode [ 105.163368][ T12] bridge_slave_0: left promiscuous mode [ 105.163695][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.675805][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 105.700605][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 105.711782][ T12] bond0 (unregistering): Released all slaves [ 105.877472][ T5274] 8021q: adding VLAN 0 to HW filter on device eth1 [ 105.904330][ T12] hsr_slave_0: left promiscuous mode [ 105.910026][ T12] hsr_slave_1: left promiscuous mode [ 105.912877][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 105.912921][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 105.916894][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 105.916923][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 105.945472][ T12] veth1_macvtap: left promiscuous mode [ 105.945570][ T12] veth0_macvtap: left promiscuous mode [ 105.945735][ T12] veth1_vlan: left promiscuous mode [ 105.945871][ T12] veth0_vlan: left promiscuous mode [ 106.213661][ T12] team0 (unregistering): Port device team_slave_1 removed [ 106.238948][ T12] team0 (unregistering): Port device team_slave_0 removed [ 106.529242][ T38] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.529315][ T38] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.635196][ T38] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 106.635271][ T38] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.871829][ T5274] 8021q: adding VLAN 0 to HW filter on device eth2 [ 109.059031][ T5274] 8021q: adding VLAN 0 to HW filter on device eth3 [ 109.956073][ T5274] 8021q: adding VLAN 0 to HW filter on device eth4 2026/09/04 23:25:06 executed programs: 0 [ 110.488114][ T5706] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 110.502296][ T5706] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 110.514157][ T5706] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 110.526994][ T5706] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 110.533267][ T5706] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 111.250827][ T5812] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.251051][ T5812] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.251506][ T5812] bridge_slave_0: entered allmulticast mode [ 111.254583][ T5812] bridge_slave_0: entered promiscuous mode [ 111.260027][ T5812] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.260193][ T5812] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.260349][ T5812] bridge_slave_1: entered allmulticast mode [ 111.263568][ T5812] bridge_slave_1: entered promiscuous mode [ 111.320529][ T5812] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.324619][ T5812] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.364226][ T5812] team0: Port device team_slave_0 added [ 111.369424][ T5812] team0: Port device team_slave_1 added [ 111.406065][ T5812] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.406110][ T5812] 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. [ 111.406156][ T5812] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.408841][ T5812] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.408863][ T5812] 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. [ 111.408909][ T5812] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 111.518816][ T5812] hsr_slave_0: entered promiscuous mode [ 111.522004][ T5812] hsr_slave_1: entered promiscuous mode [ 112.196324][ T5812] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 112.212733][ T5812] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 112.222176][ T5812] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 112.234927][ T5812] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 112.248831][ T5812] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 112.265424][ T5812] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 112.267070][ T5812] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 112.279239][ T5812] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 112.425515][ T5812] 8021q: adding VLAN 0 to HW filter on device bond0 [ 112.457126][ T5812] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.477635][ T38] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.477894][ T38] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.489434][ T38] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.489572][ T38] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.543915][ T5706] Bluetooth: hci0: command tx timeout [ 113.196059][ T5812] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 113.286391][ T5812] veth0_vlan: entered promiscuous mode [ 113.303198][ T5812] veth1_vlan: entered promiscuous mode [ 113.355200][ T5812] veth0_macvtap: entered promiscuous mode [ 113.361159][ T5812] veth1_macvtap: entered promiscuous mode [ 113.399087][ T5812] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 113.414119][ T5812] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 113.510115][ T59] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.510226][ T59] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.510293][ T59] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.510355][ T59] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 113.583404][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 113.583472][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 113.649486][ T59] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 113.649557][ T59] 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) [ 114.757434][ T59] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build1714455878=/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/ccogJTgc.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