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 '10.128.1.181' (ED25519) to the list of known hosts. 2026/10/21 13:19:44 parsed 1 programs [ 21.837362][ T24] audit: type=1400 audit(1792588784.429:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 21.859018][ T24] audit: type=1400 audit(1792588784.429:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 21.878896][ T24] audit: type=1400 audit(1792588784.429:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 22.463014][ T24] audit: type=1400 audit(1792588785.049:67): avc: denied { mounton } for pid=295 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 22.464200][ T295] cgroup: Unknown subsys name 'net' [ 22.485973][ T24] audit: type=1400 audit(1792588785.049:68): avc: denied { mount } for pid=295 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.514727][ T24] audit: type=1400 audit(1792588785.079:69): avc: denied { unmount } for pid=295 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.514924][ T295] cgroup: Unknown subsys name 'devices' [ 22.638132][ T295] cgroup: Unknown subsys name 'hugetlb' [ 22.643862][ T295] cgroup: Unknown subsys name 'rlimit' [ 22.792090][ T24] audit: type=1400 audit(1792588785.379:70): avc: denied { setattr } for pid=295 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 22.816187][ T24] audit: type=1400 audit(1792588785.379:71): avc: denied { create } for pid=295 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 22.837504][ T24] audit: type=1400 audit(1792588785.379:72): avc: denied { write } for pid=295 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.838624][ T298] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.858613][ T24] audit: type=1400 audit(1792588785.379:73): avc: denied { read } for pid=295 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.895812][ T295] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.390203][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 23.416746][ T306] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.845357][ T339] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.852696][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.860342][ T339] device bridge_slave_0 entered promiscuous mode [ 23.868239][ T339] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.875575][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.883014][ T339] device bridge_slave_1 entered promiscuous mode [ 23.959910][ T339] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.967184][ T339] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.974647][ T339] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.981741][ T339] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.006734][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.015356][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.024216][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.042509][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.050945][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.064902][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.077159][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.085705][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.094014][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.105444][ T339] device veth0_vlan entered promiscuous mode [ 24.136947][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.151232][ T339] device veth1_macvtap entered promiscuous mode [ 24.162103][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready 2026/10/21 13:19:46 executed programs: 0 [ 24.183314][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.259195][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.266589][ T366] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.274567][ T366] device bridge_slave_0 entered promiscuous mode [ 24.282032][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.289341][ T366] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.297324][ T366] device bridge_slave_1 entered promiscuous mode [ 24.327379][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.334935][ T366] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.342899][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.350474][ T366] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.367397][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.375167][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.382663][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.392468][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.400984][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.408242][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.417257][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.426017][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.433237][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.444878][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.454421][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.467692][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.478899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.487394][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.495077][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.503736][ T366] device veth0_vlan entered promiscuous mode [ 24.517483][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.527843][ T366] device veth1_macvtap entered promiscuous mode [ 24.543815][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 24.552391][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.562489][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 24.571069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) 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-build1780446649=/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/cc5hAJm5.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