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 '10.128.1.81' (ED25519) to the list of known hosts. 2026/03/12 16:50:16 parsed 1 programs [ 85.357062][ T5831] cgroup: Unknown subsys name 'net' [ 85.472319][ T5831] cgroup: Unknown subsys name 'cpuset' [ 85.481576][ T5831] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 87.316226][ T5831] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 90.770183][ T5849] 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. [ 90.852434][ T1015] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.861477][ T1015] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.064522][ T1015] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.103999][ T1015] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.058561][ T9] cfg80211: failed to load regulatory.db [ 92.110420][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 92.123830][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 92.132025][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 92.143102][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 92.152932][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 93.694042][ T5885] chnl_net:caif_netlink_parms(): no params data found [ 94.206423][ T5885] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.216723][ T5885] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.228611][ T5885] bridge_slave_0: entered allmulticast mode [ 94.257035][ T5885] bridge_slave_0: entered promiscuous mode [ 94.285385][ T5885] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.306781][ T5885] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.314872][ T5885] bridge_slave_1: entered allmulticast mode [ 94.325331][ T5885] bridge_slave_1: entered promiscuous mode [ 94.462149][ T5885] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.481624][ T5885] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.537823][ T5885] team0: Port device team_slave_0 added [ 94.553035][ T5885] team0: Port device team_slave_1 added [ 94.603620][ T5885] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.611799][ T5885] 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. [ 94.637979][ T5885] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.651462][ T5885] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.658455][ T5885] 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. [ 94.684452][ T5885] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.734913][ T5885] hsr_slave_0: entered promiscuous mode [ 94.742007][ T5885] hsr_slave_1: entered promiscuous mode [ 94.916199][ T5885] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 94.930418][ T5885] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 94.942113][ T5885] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 94.952915][ T5885] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 95.054121][ T5885] 8021q: adding VLAN 0 to HW filter on device bond0 [ 95.085317][ T5885] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.103624][ T1015] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.111530][ T1015] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.131170][ T1015] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.138351][ T1015] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.349932][ T5885] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.414988][ T5885] veth0_vlan: entered promiscuous mode [ 95.431771][ T5885] veth1_vlan: entered promiscuous mode [ 95.470375][ T5885] veth0_macvtap: entered promiscuous mode [ 95.483456][ T5885] veth1_macvtap: entered promiscuous mode [ 95.510213][ T5885] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.528050][ T5885] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.546480][ T1015] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.556229][ T1015] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.566616][ T1015] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.577736][ T1015] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/03/12 16:50:29 executed programs: 0 [ 95.751697][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 95.761153][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 95.769399][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 95.780399][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 95.790882][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 96.122934][ T5945] chnl_net:caif_netlink_parms(): no params data found [ 96.210290][ T5945] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.217767][ T5945] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.225817][ T5945] bridge_slave_0: entered allmulticast mode [ 96.233881][ T5945] bridge_slave_0: entered promiscuous mode [ 96.243551][ T5945] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.251112][ T5945] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.258524][ T5945] bridge_slave_1: entered allmulticast mode [ 96.266041][ T5945] bridge_slave_1: entered promiscuous mode [ 96.308287][ T5945] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 96.322030][ T5945] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 96.363122][ T5945] team0: Port device team_slave_0 added [ 96.375034][ T5945] team0: Port device team_slave_1 added [ 96.407939][ T5945] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 96.415141][ T5945] 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. [ 96.442125][ T5945] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 96.456437][ T5945] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 96.463493][ T5945] 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. [ 96.489661][ T5945] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 96.552819][ T5945] hsr_slave_0: entered promiscuous mode [ 96.559887][ T5945] hsr_slave_1: entered promiscuous mode [ 96.566487][ T5945] debugfs: 'hsr0' already exists in 'hsr' [ 96.572850][ T5945] Cannot create hsr debugfs directory [ 96.780612][ T5945] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.792718][ T5945] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.804536][ T5945] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.815747][ T5945] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.921233][ T5945] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.952428][ T5945] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.967552][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.974747][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.993909][ T141] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.001505][ T141] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.203431][ T5945] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.265992][ T5945] veth0_vlan: entered promiscuous mode [ 97.281321][ T5945] veth1_vlan: entered promiscuous mode [ 97.326236][ T5945] veth0_macvtap: entered promiscuous mode [ 97.337112][ T5945] veth1_macvtap: entered promiscuous mode [ 97.365758][ T5945] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.382031][ T5945] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.406557][ T141] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.415625][ T141] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.426436][ T141] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.437270][ T141] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.514078][ T141] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.524369][ T141] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.556527][ T63] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.565006][ T63] 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) [ 98.273853][ T63] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build673316843=/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 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/ccCjvs3I.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