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]:60792' (ED25519) to the list of known hosts. 2026/01/07 11:13:05 parsed 1 programs syzkaller login: [ 88.536789][ T5325] cgroup: Unknown subsys name 'net' [ 88.607741][ T5325] cgroup: Unknown subsys name 'cpuset' [ 88.613057][ T5325] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 90.327177][ T5325] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.828524][ T10] cfg80211: failed to load regulatory.db [ 96.280585][ T5343] 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. [ 99.393049][ T4683] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.397113][ T4683] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.400097][ T4683] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.405862][ T4683] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.409194][ T4683] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.187139][ T925] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.190682][ T925] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.253038][ T2781] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.257856][ T2781] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.371932][ T5396] chnl_net:caif_netlink_parms(): no params data found [ 101.453583][ T5396] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.457639][ T5396] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.460714][ T5396] bridge_slave_0: entered allmulticast mode [ 101.464837][ T5396] bridge_slave_0: entered promiscuous mode [ 101.470155][ T5396] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.473256][ T5396] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.476836][ T5396] bridge_slave_1: entered allmulticast mode [ 101.481154][ T5396] bridge_slave_1: entered promiscuous mode [ 101.505814][ T5396] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.511793][ T5396] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.536111][ T5396] team0: Port device team_slave_0 added [ 101.540599][ T5396] team0: Port device team_slave_1 added [ 101.560790][ T5396] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.563830][ T5396] 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. [ 101.575130][ T5396] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.581701][ T5396] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.585906][ T5396] 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. [ 101.597285][ T5396] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.636014][ T5396] hsr_slave_0: entered promiscuous mode [ 101.639181][ T5396] hsr_slave_1: entered promiscuous mode [ 101.876756][ T5396] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.896280][ T5396] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.909331][ T5396] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.925590][ T5396] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.954391][ T5396] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.957643][ T5396] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.961577][ T5396] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.964901][ T5396] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.021878][ T5396] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.048170][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.052429][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.070087][ T5396] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.090173][ T925] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.093477][ T925] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.110722][ T925] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.114037][ T925] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.178432][ T5396] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 102.428330][ T5396] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.500294][ T5396] veth0_vlan: entered promiscuous mode [ 102.517479][ T5396] veth1_vlan: entered promiscuous mode [ 102.561025][ T5396] veth0_macvtap: entered promiscuous mode [ 102.577107][ T5396] veth1_macvtap: entered promiscuous mode [ 102.602516][ T5396] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.626118][ T5396] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.647297][ T2642] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.656894][ T2642] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.677082][ T2642] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.689424][ T2642] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.892345][ T2642] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.956394][ T2642] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.026740][ T2642] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.136107][ T2642] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/01/07 11:13:24 executed programs: 0 [ 104.751420][ T46] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.758077][ T46] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.761677][ T46] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.765876][ T46] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.769685][ T46] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.912412][ T5436] chnl_net:caif_netlink_parms(): no params data found [ 105.001561][ T5436] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.005158][ T5436] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.008448][ T5436] bridge_slave_0: entered allmulticast mode [ 105.012249][ T5436] bridge_slave_0: entered promiscuous mode [ 105.018886][ T5436] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.022146][ T5436] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.025711][ T5436] bridge_slave_1: entered allmulticast mode [ 105.029956][ T5436] bridge_slave_1: entered promiscuous mode [ 105.053264][ T5436] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 105.059670][ T5436] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 105.108629][ T5436] team0: Port device team_slave_0 added [ 105.126216][ T5436] team0: Port device team_slave_1 added [ 105.161624][ T5436] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 105.165010][ T5436] 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. [ 105.177590][ T5436] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 105.183670][ T5436] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 105.187495][ T5436] 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. [ 105.200266][ T5436] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 105.275262][ T5436] hsr_slave_0: entered promiscuous mode [ 105.284607][ T5436] hsr_slave_1: entered promiscuous mode [ 105.292649][ T5436] debugfs: 'hsr0' already exists in 'hsr' [ 105.296130][ T5436] Cannot create hsr debugfs directory [ 105.475509][ T2642] bridge_slave_1: left allmulticast mode [ 105.478241][ T2642] bridge_slave_1: left promiscuous mode [ 105.481543][ T2642] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.506238][ T2642] bridge_slave_0: left allmulticast mode [ 105.508773][ T2642] bridge_slave_0: left promiscuous mode [ 105.511341][ T2642] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.886322][ T2642] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 105.892992][ T2642] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 105.905613][ T2642] bond0 (unregistering): Released all slaves [ 105.999430][ T2642] hsr_slave_0: left promiscuous mode [ 106.004715][ T2642] hsr_slave_1: left promiscuous mode [ 106.014745][ T2642] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 106.018213][ T2642] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 106.033799][ T2642] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 106.038368][ T2642] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 106.061634][ T2642] veth1_macvtap: left promiscuous mode [ 106.071837][ T2642] veth0_macvtap: left promiscuous mode [ 106.084326][ T2642] veth1_vlan: left promiscuous mode [ 106.088805][ T2642] veth0_vlan: left promiscuous mode [ 106.548267][ T2642] team0 (unregistering): Port device team_slave_1 removed [ 106.570601][ T2642] team0 (unregistering): Port device team_slave_0 removed [ 106.855281][ T46] Bluetooth: hci0: command tx timeout [ 107.536913][ T5436] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 107.568089][ T5436] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 107.587709][ T5436] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.611328][ T5436] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.796353][ T5436] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.835009][ T5436] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.848925][ T54] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.852072][ T54] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.879697][ T2642] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.883224][ T2642] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.180796][ T5436] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 108.253047][ T5436] veth0_vlan: entered promiscuous mode [ 108.274611][ T5436] veth1_vlan: entered promiscuous mode [ 108.326270][ T5436] veth0_macvtap: entered promiscuous mode [ 108.337072][ T5436] veth1_macvtap: entered promiscuous mode [ 108.369184][ T5436] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 108.385640][ T5436] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 108.420449][ T2781] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.436622][ T2781] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.443441][ T2781] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.477472][ T2781] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.552223][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.569980][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.614658][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.618211][ T13] 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) [ 109.867503][ T13] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.876798][ T13] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.584719][ T13] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.621395][ T13] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 111.727091][ T13] bridge_slave_1: left allmulticast mode [ 111.729509][ T13] bridge_slave_1: left promiscuous mode [ 111.732075][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.746340][ T13] bridge_slave_0: left allmulticast mode [ 111.748648][ T13] bridge_slave_0: left promiscuous mode [ 111.751051][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.145800][ T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 112.153209][ T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 112.158719][ T13] bond0 (unregistering): Released all slaves [ 112.365086][ T13] hsr_slave_0: left promiscuous mode [ 112.384247][ T13] hsr_slave_1: left promiscuous mode [ 112.387287][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 112.390626][ T13] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 112.407206][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 112.410705][ T13] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 112.432088][ T13] veth1_macvtap: left promiscuous mode [ 112.446121][ T13] veth0_macvtap: left promiscuous mode [ 112.448802][ T13] veth1_vlan: left promiscuous mode [ 112.451149][ T13] veth0_vlan: left promiscuous mode [ 112.840491][ T13] team0 (unregistering): Port device team_slave_1 removed [ 112.867103][ T13] 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-build3375025284=/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/ccX6FRY7.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