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]:30258' (ED25519) to the list of known hosts. 2026/01/16 07:18:29 parsed 1 programs [ 88.413697][ T5324] cgroup: Unknown subsys name 'net' [ 88.504269][ T5324] cgroup: Unknown subsys name 'cpuset' [ 88.509627][ T5324] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 90.388123][ T5324] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.808009][ T919] cfg80211: failed to load regulatory.db [ 95.077884][ T5342] 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. [ 96.576873][ T4681] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 96.583702][ T4681] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 96.587435][ T4681] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 96.592073][ T4681] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 96.595343][ T4681] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.602525][ T5385] chnl_net:caif_netlink_parms(): no params data found [ 98.822832][ T5385] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.826795][ T5385] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.829969][ T5385] bridge_slave_0: entered allmulticast mode [ 98.851025][ T5385] bridge_slave_0: entered promiscuous mode [ 98.864244][ T5385] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.870818][ T5385] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.874103][ T5385] bridge_slave_1: entered allmulticast mode [ 98.900698][ T5385] bridge_slave_1: entered promiscuous mode [ 98.946057][ T5385] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.964166][ T5385] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.012159][ T5385] team0: Port device team_slave_0 added [ 99.022068][ T5385] team0: Port device team_slave_1 added [ 99.068074][ T5385] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.081095][ T5385] 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. [ 99.101193][ T5385] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.110891][ T5385] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.114023][ T5385] 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. [ 99.140817][ T5385] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.221958][ T5385] hsr_slave_0: entered promiscuous mode [ 99.225372][ T5385] hsr_slave_1: entered promiscuous mode [ 99.486089][ T5385] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.495900][ T5385] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.502453][ T5385] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.509667][ T5385] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.586660][ T5385] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.604116][ T5385] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.613954][ T1042] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.617202][ T1042] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.628048][ T3492] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.631525][ T3492] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.813341][ T5385] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.846977][ T5385] veth0_vlan: entered promiscuous mode [ 99.857047][ T5385] veth1_vlan: entered promiscuous mode [ 99.883479][ T5385] veth0_macvtap: entered promiscuous mode [ 99.889421][ T5385] veth1_macvtap: entered promiscuous mode [ 99.906311][ T5385] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.917662][ T5385] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.927958][ T3097] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.937165][ T3097] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.949525][ T3097] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.965349][ T3097] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.109788][ T3492] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.177785][ T3492] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.227959][ T3492] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.255007][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.258301][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.284952][ T3492] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.325866][ T3097] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.329591][ T3097] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.961125][ T3492] bridge_slave_1: left allmulticast mode [ 102.964199][ T3492] bridge_slave_1: left promiscuous mode [ 102.967702][ T3492] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.013221][ T3492] bridge_slave_0: left allmulticast mode [ 103.015464][ T3492] bridge_slave_0: left promiscuous mode [ 103.030721][ T3492] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.589043][ T3492] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 103.599086][ T3492] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 103.612857][ T3492] bond0 (unregistering): Released all slaves [ 103.739323][ T3492] hsr_slave_0: left promiscuous mode [ 103.750141][ T3492] hsr_slave_1: left promiscuous mode [ 103.756359][ T3492] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 103.759615][ T3492] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 103.786448][ T3492] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 103.789840][ T3492] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 103.842101][ T3492] veth1_macvtap: left promiscuous mode [ 103.844700][ T3492] veth0_macvtap: left promiscuous mode [ 103.857319][ T3492] veth1_vlan: left promiscuous mode [ 103.870954][ T3492] veth0_vlan: left promiscuous mode 2026/01/16 07:18:47 executed programs: 0 [ 104.076542][ T46] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.081439][ T46] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.085089][ T46] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.092635][ T46] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.096305][ T46] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.431328][ T3492] team0 (unregistering): Port device team_slave_1 removed [ 104.456483][ T3492] team0 (unregistering): Port device team_slave_0 removed [ 105.336534][ T5449] chnl_net:caif_netlink_parms(): no params data found [ 105.805096][ T5449] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.808634][ T5449] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.822111][ T5449] bridge_slave_0: entered allmulticast mode [ 105.826078][ T5449] bridge_slave_0: entered promiscuous mode [ 105.854721][ T5449] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.858187][ T5449] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.864117][ T5449] bridge_slave_1: entered allmulticast mode [ 105.874719][ T5449] bridge_slave_1: entered promiscuous mode [ 105.954244][ T5449] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 105.972168][ T5449] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.044668][ T5449] team0: Port device team_slave_0 added [ 106.069524][ T5449] team0: Port device team_slave_1 added [ 106.123324][ T46] Bluetooth: hci0: command tx timeout [ 106.129259][ T5449] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.133104][ T5449] 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. [ 106.159248][ T5449] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.168765][ T5449] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.173369][ T5449] 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. [ 106.186618][ T5449] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 106.246509][ T5449] hsr_slave_0: entered promiscuous mode [ 106.249808][ T5449] hsr_slave_1: entered promiscuous mode [ 106.702676][ T5449] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.720281][ T5449] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.743494][ T5449] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 106.750142][ T5449] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 106.893357][ T5449] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.929648][ T5449] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.958353][ T3492] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.961692][ T3492] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.997550][ T3492] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.000728][ T3492] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.058299][ T5449] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 107.072118][ T5449] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 107.332040][ T5449] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.401616][ T5449] veth0_vlan: entered promiscuous mode [ 107.421590][ T5449] veth1_vlan: entered promiscuous mode [ 107.469698][ T5449] veth0_macvtap: entered promiscuous mode [ 107.488425][ T5449] veth1_macvtap: entered promiscuous mode [ 107.515967][ T5449] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.536379][ T5449] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.556188][ T3492] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.570892][ T3492] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.574739][ T3492] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.578404][ T3492] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 107.700180][ T3492] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.715976][ T3492] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.764638][ T38] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.768253][ T38] 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) [ 109.085614][ T3097] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.142579][ T3097] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.582219][ T3097] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.633980][ T3097] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.782899][ T3097] bridge_slave_1: left allmulticast mode [ 110.785430][ T3097] bridge_slave_1: left promiscuous mode [ 110.788032][ T3097] bridge0: port 2(bridge_slave_1) entered disabled state [ 110.811393][ T3097] bridge_slave_0: left allmulticast mode [ 110.813912][ T3097] bridge_slave_0: left promiscuous mode [ 110.816548][ T3097] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.189788][ T3097] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 111.196789][ T3097] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 111.204622][ T3097] bond0 (unregistering): Released all slaves [ 111.426548][ T3097] hsr_slave_0: left promiscuous mode [ 111.429537][ T3097] hsr_slave_1: left promiscuous mode [ 111.441166][ T3097] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 111.444489][ T3097] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 111.453407][ T3097] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 111.456765][ T3097] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 111.487213][ T3097] veth1_macvtap: left promiscuous mode [ 111.489855][ T3097] veth0_macvtap: left promiscuous mode [ 111.501411][ T3097] veth1_vlan: left promiscuous mode [ 111.505235][ T3097] veth0_vlan: left promiscuous mode [ 111.928725][ T3097] team0 (unregistering): Port device team_slave_1 removed [ 111.954297][ T3097] 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-build1277048055=/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/ccnuE61V.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