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 '10.128.10.34' (ED25519) to the list of known hosts. 2026/07/19 10:54:27 parsed 1 programs [ 97.443065][ T1143] cfg80211: failed to load regulatory.db [ 98.503658][ T5637] cgroup: Unknown subsys name 'net' [ 98.584381][ T5637] cgroup: Unknown subsys name 'cpuset' [ 98.594141][ T5637] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 100.354663][ T5637] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 103.635520][ T5657] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 103.648271][ T5657] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 103.660437][ T5657] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 103.672050][ T5657] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 103.683019][ T5657] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 103.975390][ T5654] 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. [ 105.543705][ T35] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.554015][ T35] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.807116][ T57] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.828809][ T57] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.085002][ T5701] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.094566][ T5701] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.103105][ T5701] bridge_slave_0: entered allmulticast mode [ 108.113288][ T5701] bridge_slave_0: entered promiscuous mode [ 108.127041][ T5701] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.136128][ T5701] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.145372][ T5701] bridge_slave_1: entered allmulticast mode [ 108.154799][ T5701] bridge_slave_1: entered promiscuous mode [ 108.205664][ T5701] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 108.218907][ T5701] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 108.257231][ T5701] team0: Port device team_slave_0 added [ 108.268847][ T5701] team0: Port device team_slave_1 added [ 108.302269][ T5701] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 108.310072][ T5701] 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. [ 108.339313][ T5701] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 108.353499][ T5701] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 108.362409][ T5701] 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. [ 108.390812][ T5701] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 108.442424][ T5701] hsr_slave_0: entered promiscuous mode [ 108.451411][ T5701] hsr_slave_1: entered promiscuous mode [ 108.634245][ T5701] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 108.649921][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 108.664496][ T5701] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 108.676188][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 108.684709][ T5701] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 108.697603][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 108.706017][ T5701] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 108.716217][ T5701] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 108.807979][ T5701] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.835308][ T5701] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.850516][ T35] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.859474][ T35] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.879309][ T35] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.886871][ T35] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.272499][ T5701] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.331266][ T5701] veth0_vlan: entered promiscuous mode [ 109.346668][ T5701] veth1_vlan: entered promiscuous mode [ 109.387298][ T5701] veth0_macvtap: entered promiscuous mode [ 109.397495][ T5701] veth1_macvtap: entered promiscuous mode [ 109.420939][ T5701] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.437915][ T5701] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 109.456182][ T79] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.467871][ T79] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.483021][ T79] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.492591][ T79] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/07/19 10:54:42 executed programs: 0 [ 109.672782][ T4941] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 109.683964][ T4941] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 109.699954][ T4941] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 109.711042][ T4941] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 109.719832][ T4941] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 110.293995][ T5760] bridge0: port 1(bridge_slave_0) entered blocking state [ 110.302047][ T5760] bridge0: port 1(bridge_slave_0) entered disabled state [ 110.310591][ T5760] bridge_slave_0: entered allmulticast mode [ 110.321184][ T5760] bridge_slave_0: entered promiscuous mode [ 110.330024][ T5760] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.337616][ T5760] bridge0: port 2(bridge_slave_1) entered disabled state [ 110.345828][ T5760] bridge_slave_1: entered allmulticast mode [ 110.353677][ T5760] bridge_slave_1: entered promiscuous mode [ 110.393639][ T5760] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 110.407407][ T5760] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 110.447286][ T5760] team0: Port device team_slave_0 added [ 110.456050][ T5760] team0: Port device team_slave_1 added [ 110.496441][ T5760] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 110.503874][ T5760] 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. [ 110.532273][ T5760] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 110.546272][ T5760] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 110.554281][ T5760] 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. [ 110.583629][ T5760] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 110.640120][ T5760] hsr_slave_0: entered promiscuous mode [ 110.647321][ T5760] hsr_slave_1: entered promiscuous mode [ 110.654581][ T5760] debugfs: 'hsr0' already exists in 'hsr' [ 110.660796][ T5760] Cannot create hsr debugfs directory [ 110.847122][ T5760] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 110.857770][ T5760] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 110.867465][ T5760] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 110.879469][ T5760] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 110.892099][ T5760] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 110.905258][ T5760] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 110.915720][ T5760] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 110.925865][ T5760] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 111.036639][ T5760] 8021q: adding VLAN 0 to HW filter on device bond0 [ 111.067886][ T5760] 8021q: adding VLAN 0 to HW filter on device team0 [ 111.085343][ T57] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.092954][ T57] bridge0: port 1(bridge_slave_0) entered forwarding state [ 111.118109][ T57] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.125820][ T57] bridge0: port 2(bridge_slave_1) entered forwarding state [ 111.608772][ T5760] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 111.663508][ T5760] veth0_vlan: entered promiscuous mode [ 111.675647][ T5760] veth1_vlan: entered promiscuous mode [ 111.710576][ T5760] veth0_macvtap: entered promiscuous mode [ 111.721718][ T5760] veth1_macvtap: entered promiscuous mode [ 111.745985][ T5760] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 111.760341][ T4941] Bluetooth: hci0: command tx timeout [ 111.763248][ T5760] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 111.783109][ T35] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.792531][ T35] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.805273][ T35] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.818711][ T35] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.897267][ T1055] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.908220][ T1055] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 111.947995][ T57] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 111.956484][ T57] 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) [ 112.240418][ T57] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.365385][ T57] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.426252][ T57] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.475860][ T57] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 112.765089][ T57] bridge_slave_1: left allmulticast mode [ 112.783414][ T57] bridge_slave_1: left promiscuous mode [ 112.800359][ T57] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.827631][ T57] bridge_slave_0: left allmulticast mode [ 112.835145][ T57] bridge_slave_0: left promiscuous mode [ 112.845022][ T57] bridge0: port 1(bridge_slave_0) entered disabled state [ 113.267888][ T57] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 113.296227][ T57] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 113.331091][ T57] bond0 (unregistering): Released all slaves 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-build560664562=/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 d6526ea3e6 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/ccyz2U2t.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