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 '10.128.0.118' (ED25519) to the list of known hosts. 2026/08/01 06:38:56 parsed 1 programs [ 83.754432][ T5528] cgroup: Unknown subsys name 'net' [ 83.862489][ T5528] cgroup: Unknown subsys name 'cpuset' [ 83.872618][ T5528] cgroup: Unknown subsys name 'rlimit' [ 83.878564][ T5528] cgroup: Unknown subsys name 'memory' Setting up swapspace version 1, size = 127995904 bytes [ 85.504395][ T5528] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 89.394654][ T5565] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.405073][ T5565] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.416500][ T5565] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.427317][ T5565] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.436251][ T5565] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 90.900337][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.910387][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.571703][ T28] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.580159][ T28] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.142694][ T185] cfg80211: failed to load regulatory.db [ 92.675902][ T5605] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.683794][ T5605] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.691362][ T5605] bridge_slave_0: entered allmulticast mode [ 92.699625][ T5605] bridge_slave_0: entered promiscuous mode [ 92.709910][ T5605] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.717764][ T5605] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.725345][ T5605] bridge_slave_1: entered allmulticast mode [ 92.733344][ T5605] bridge_slave_1: entered promiscuous mode [ 92.767330][ T5605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.780150][ T5605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.814822][ T5605] team0: Port device team_slave_0 added [ 92.823145][ T5605] team0: Port device team_slave_1 added [ 92.852358][ T5605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.859551][ T5605] 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. [ 92.886199][ T5605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.900632][ T5605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.907708][ T5605] 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. [ 92.934636][ T5605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.982057][ T5605] hsr_slave_0: entered promiscuous mode [ 92.989203][ T5605] hsr_slave_1: entered promiscuous mode [ 93.148997][ T5605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.164235][ T5605] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 93.172609][ T5605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.183797][ T5605] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 93.193293][ T5605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.204588][ T5605] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 93.212765][ T5605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.227392][ T5605] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 93.261571][ T5605] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.269606][ T5605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.277759][ T5605] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.285360][ T5605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.356610][ T5605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.376957][ T28] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.387769][ T28] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.407183][ T5605] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.421353][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.428672][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.443050][ T28] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.450809][ T28] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.747449][ T5605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.793757][ T5605] veth0_vlan: entered promiscuous mode [ 93.809531][ T5605] veth1_vlan: entered promiscuous mode [ 93.844535][ T5605] veth0_macvtap: entered promiscuous mode [ 93.855016][ T5605] veth1_macvtap: entered promiscuous mode [ 93.876406][ T5605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.893685][ T5605] batman_adv: batadv0: Interface activated: batadv_slave_1 2026/08/01 06:39:09 executed programs: 0 [ 93.960669][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.990437][ T28] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.013429][ T28] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.048613][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.076234][ T4836] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 94.085815][ T4836] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 94.094328][ T4836] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 94.104070][ T4836] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 94.113135][ T4836] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 94.148106][ T48] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.235842][ T48] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.294253][ T48] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.352407][ T48] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.632611][ T5654] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.640100][ T5654] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.647295][ T5654] bridge_slave_0: entered allmulticast mode [ 94.655007][ T5654] bridge_slave_0: entered promiscuous mode [ 94.663792][ T5654] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.671307][ T5654] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.679545][ T5654] bridge_slave_1: entered allmulticast mode [ 94.687131][ T5654] bridge_slave_1: entered promiscuous mode [ 94.724502][ T5654] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.737209][ T5654] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.777053][ T5654] team0: Port device team_slave_0 added [ 94.786236][ T5654] team0: Port device team_slave_1 added [ 94.820545][ T5654] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.827625][ T5654] 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. [ 94.854288][ T5654] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.867649][ T5654] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.874846][ T5654] 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. [ 94.902674][ T5654] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.963298][ T5654] hsr_slave_0: entered promiscuous mode [ 94.970395][ T5654] hsr_slave_1: entered promiscuous mode [ 94.977870][ T5654] debugfs: 'hsr0' already exists in 'hsr' [ 94.984668][ T5654] Cannot create hsr debugfs directory [ 96.199574][ T4836] Bluetooth: hci0: command tx timeout [ 96.350862][ T48] bridge_slave_1: left allmulticast mode [ 96.358017][ T48] bridge_slave_1: left promiscuous mode [ 96.366115][ T48] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.382391][ T48] bridge_slave_0: left allmulticast mode [ 96.389225][ T48] bridge_slave_0: left promiscuous mode [ 96.395297][ T48] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.596574][ T48] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 96.616887][ T48] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 96.630740][ T48] bond0 (unregistering): Released all slaves [ 96.756798][ T48] hsr_slave_0: left promiscuous mode [ 96.769385][ T48] hsr_slave_1: left promiscuous mode [ 96.782863][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 96.790614][ T48] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 96.803332][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 96.811221][ T48] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 96.832323][ T48] veth1_macvtap: left promiscuous mode [ 96.839100][ T48] veth0_macvtap: left promiscuous mode [ 96.844817][ T48] veth1_vlan: left promiscuous mode [ 96.851606][ T48] veth0_vlan: left promiscuous mode [ 97.065335][ T48] team0 (unregistering): Port device team_slave_1 removed [ 97.080944][ T48] team0 (unregistering): Port device team_slave_0 removed [ 97.219378][ T5179] 8021q: adding VLAN 0 to HW filter on device eth1 [ 97.575759][ T5654] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 97.617871][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 97.626439][ T5654] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 97.660707][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 97.691938][ T5654] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 97.740841][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 97.764351][ T5654] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 97.795015][ T5654] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 97.939750][ T5654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.974576][ T5654] 8021q: adding VLAN 0 to HW filter on device team0 [ 97.989776][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.997106][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.021685][ T1009] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.028970][ T1009] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.279950][ T4836] Bluetooth: hci0: command tx timeout [ 98.513882][ T5654] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 98.594360][ T5654] veth0_vlan: entered promiscuous mode [ 98.615797][ T5654] veth1_vlan: entered promiscuous mode [ 98.663435][ T5654] veth0_macvtap: entered promiscuous mode [ 98.674926][ T5654] veth1_macvtap: entered promiscuous mode [ 98.705345][ T5654] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 98.724256][ T5654] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 98.841380][ T1009] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.853094][ T1009] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.888359][ T1009] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.899044][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.911779][ T1009] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.920538][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.987554][ T1009] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.997619][ T1009] 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) 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-build4082632750=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/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/cc1RnfFB.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