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]:11348' (ED25519) to the list of known hosts. 2026/09/30 07:20:09 parsed 1 programs syzkaller login: [ 89.445798][ T5286] cgroup: Unknown subsys name 'net' [ 89.518475][ T5286] cgroup: Unknown subsys name 'cpuset' [ 89.525948][ T5286] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.162546][ T5286] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.930795][ T1243] cfg80211: failed to load regulatory.db [ 97.727934][ T5300] 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. [ 100.848080][ T5344] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.863779][ T5344] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.865168][ T5344] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.869752][ T5344] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.880800][ T5344] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 102.942283][ T4644] Bluetooth: hci0: command tx timeout [ 104.256514][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.256534][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.021719][ T4644] Bluetooth: hci0: command tx timeout [ 105.412453][ T54] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.412474][ T54] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.297355][ T5317] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.297446][ T5317] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.297578][ T5317] bridge_slave_0: entered allmulticast mode [ 108.316464][ T5317] bridge_slave_0: entered promiscuous mode [ 108.472209][ T5317] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.472287][ T5317] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.472413][ T5317] bridge_slave_1: entered allmulticast mode [ 108.493091][ T5317] bridge_slave_1: entered promiscuous mode [ 108.643282][ T5317] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 108.662132][ T5317] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 108.852431][ T5317] team0: Port device team_slave_0 added [ 108.880715][ T5317] team0: Port device team_slave_1 added [ 109.035643][ T5317] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 109.035657][ T5317] 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. [ 109.035671][ T5317] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 109.070392][ T5317] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 109.070421][ T5317] 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. [ 109.070435][ T5317] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 109.337929][ T5317] hsr_slave_0: entered promiscuous mode [ 109.349601][ T5317] hsr_slave_1: entered promiscuous mode [ 110.114482][ T5317] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 110.139500][ T5317] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 110.146591][ T5317] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 110.157985][ T5317] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 110.158874][ T5317] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 110.184149][ T5317] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 110.185132][ T5317] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 110.189011][ T5317] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 110.397243][ T5317] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.434051][ T5317] 8021q: adding VLAN 0 to HW filter on device team0 [ 110.451425][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 110.451591][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 110.484550][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 110.484623][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 111.231749][ T5317] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 111.340861][ T5317] veth0_vlan: entered promiscuous mode [ 111.367010][ T5317] veth1_vlan: entered promiscuous mode [ 111.419892][ T5317] veth0_macvtap: entered promiscuous mode [ 111.437079][ T5317] veth1_macvtap: entered promiscuous mode [ 111.474808][ T5317] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 111.490241][ T5317] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 111.542196][ T188] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.542812][ T43] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.542835][ T43] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 111.542853][ T43] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.435495][ T5344] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 112.449766][ T5344] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 112.450420][ T5344] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 112.459402][ T5344] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 112.459869][ T5344] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2026/09/30 07:20:34 executed programs: 0 [ 113.276488][ T5413] bridge0: port 1(bridge_slave_0) entered blocking state [ 113.276607][ T5413] bridge0: port 1(bridge_slave_0) entered disabled state [ 113.276889][ T5413] bridge_slave_0: entered allmulticast mode [ 113.278212][ T5413] bridge_slave_0: entered promiscuous mode [ 113.293077][ T5413] bridge0: port 2(bridge_slave_1) entered blocking state [ 113.293151][ T5413] bridge0: port 2(bridge_slave_1) entered disabled state [ 113.293478][ T5413] bridge_slave_1: entered allmulticast mode [ 113.294457][ T5413] bridge_slave_1: entered promiscuous mode [ 113.333604][ T5413] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 113.335833][ T5413] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 113.395795][ T5413] team0: Port device team_slave_0 added [ 113.405048][ T5413] team0: Port device team_slave_1 added [ 113.459947][ T5413] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 113.459956][ T5413] 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. [ 113.459969][ T5413] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 113.484494][ T5413] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 113.484504][ T5413] 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. [ 113.484512][ T5413] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 113.536589][ T5413] hsr_slave_0: entered promiscuous mode [ 113.537309][ T5413] hsr_slave_1: entered promiscuous mode [ 113.537899][ T5413] debugfs: 'hsr0' already exists in 'hsr' [ 113.537983][ T5413] Cannot create hsr debugfs directory [ 113.786404][ T5413] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 113.795286][ T5413] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 113.796144][ T5413] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 113.799332][ T5413] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 113.800190][ T5413] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 113.817365][ T5413] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 113.818363][ T5413] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 113.833175][ T5413] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 113.874069][ T5413] bridge0: port 2(bridge_slave_1) entered blocking state [ 113.874270][ T5413] bridge0: port 2(bridge_slave_1) entered forwarding state [ 113.874989][ T5413] bridge0: port 1(bridge_slave_0) entered blocking state [ 113.875072][ T5413] bridge0: port 1(bridge_slave_0) entered forwarding state [ 113.976241][ T5413] 8021q: adding VLAN 0 to HW filter on device bond0 [ 113.990562][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 113.995356][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.006028][ T5413] 8021q: adding VLAN 0 to HW filter on device team0 [ 114.018189][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.018236][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 114.033172][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.033245][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 114.449237][ T5413] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 114.505649][ T5413] veth0_vlan: entered promiscuous mode [ 114.516716][ T5413] veth1_vlan: entered promiscuous mode [ 114.542491][ T5344] Bluetooth: hci0: command tx timeout [ 114.559550][ T5413] veth0_macvtap: entered promiscuous mode [ 114.567744][ T5413] veth1_macvtap: entered promiscuous mode [ 114.587300][ T5413] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 114.597914][ T5413] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 114.662166][ T188] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.662201][ T188] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.662219][ T188] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.662238][ T188] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 114.740149][ T43] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.740166][ T43] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 114.787022][ T43] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.787040][ T43] 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) [ 116.105984][ T188] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.228689][ T188] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.306200][ T188] netdevsim netdevsim3 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.352665][ T188] netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.625928][ T188] bridge_slave_1: left allmulticast mode [ 116.625963][ T188] bridge_slave_1: left promiscuous mode [ 116.626964][ T188] bridge0: port 2(bridge_slave_1) entered disabled state [ 116.646855][ T188] bridge_slave_0: left allmulticast mode [ 116.646874][ T188] bridge_slave_0: left promiscuous mode [ 116.647009][ T188] bridge0: port 1(bridge_slave_0) entered disabled state [ 117.013427][ T188] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 117.016866][ T188] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 117.019049][ T188] bond0 (unregistering): Released all slaves [ 117.356303][ T188] hsr_slave_0: left promiscuous mode [ 117.357701][ T188] hsr_slave_1: left promiscuous mode [ 117.358649][ T188] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 117.358674][ T188] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 117.360459][ T188] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 117.360471][ T188] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 117.434030][ T188] veth1_macvtap: left promiscuous mode [ 117.434100][ T188] veth0_macvtap: left promiscuous mode [ 117.435061][ T188] veth1_vlan: left promiscuous mode [ 117.435205][ T188] veth0_vlan: left promiscuous mode [ 117.767537][ T188] team0 (unregistering): Port device team_slave_1 removed [ 117.783357][ T188] team0 (unregistering): Port device team_slave_0 removed [ 118.295868][ T188] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.406635][ T188] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.454580][ T4990] 8021q: adding VLAN 0 to HW filter on device eth2 [ 118.474298][ T188] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.536281][ T188] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.765586][ T188] bridge_slave_1: left allmulticast mode [ 118.765607][ T188] bridge_slave_1: left promiscuous mode [ 118.765842][ T188] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.788506][ T188] bridge_slave_0: left allmulticast mode [ 118.788526][ T188] bridge_slave_0: left promiscuous mode [ 118.788674][ T188] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.040846][ T188] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 119.053892][ T188] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 119.054938][ T188] bond0 (unregistering): Released all slaves [ 119.061628][ T4990] 8021q: adding VLAN 0 to HW filter on device eth3 [ 119.343306][ T188] hsr_slave_0: left promiscuous mode [ 119.344631][ T188] hsr_slave_1: left promiscuous mode [ 119.345342][ T188] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 119.345357][ T188] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 119.346844][ T188] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 119.346855][ T188] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 119.374535][ T188] veth1_macvtap: left promiscuous mode [ 119.374596][ T188] veth0_macvtap: left promiscuous mode [ 119.375590][ T188] veth1_vlan: left promiscuous mode [ 119.375657][ T188] veth0_vlan: left promiscuous mode [ 119.725369][ T188] team0 (unregistering): Port device team_slave_1 removed [ 119.743811][ T188] team0 (unregistering): Port device team_slave_0 removed [ 119.865987][ T4990] 8021q: adding VLAN 0 to HW filter on device eth4 [ 120.246734][ T4990] 8021q: adding VLAN 0 to HW filter on device eth5 [ 120.460492][ T4990] 8021q: adding VLAN 0 to HW filter on device eth6 [ 120.685997][ T4990] 8021q: adding VLAN 0 to HW filter on device eth7 [ 120.897702][ T4990] 8021q: adding VLAN 0 to HW filter on device eth8 [ 121.109522][ T4990] 8021q: adding VLAN 0 to HW filter on device eth9 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-build1228534290=/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 d1b870e1003 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/cclLRiqm.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