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 '10.128.1.211' (ED25519) to the list of known hosts. 2026/02/15 00:54:07 parsed 1 programs [ 24.789947][ T24] audit: type=1400 audit(1771116847.200:64): avc: denied { node_bind } for pid=275 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.811154][ T24] audit: type=1400 audit(1771116847.200:65): avc: denied { create } for pid=275 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 24.830967][ T24] audit: type=1400 audit(1771116847.200:66): avc: denied { module_request } for pid=275 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 [ 25.437798][ T24] audit: type=1400 audit(1771116847.840:67): avc: denied { mounton } for pid=284 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 25.438702][ T284] cgroup: Unknown subsys name 'net' [ 25.466152][ T24] audit: type=1400 audit(1771116847.850:68): avc: denied { mount } for pid=284 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 [ 25.488758][ T24] audit: type=1400 audit(1771116847.870:69): avc: denied { unmount } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.488885][ T284] cgroup: Unknown subsys name 'devices' [ 25.659300][ T284] cgroup: Unknown subsys name 'hugetlb' [ 25.664976][ T284] cgroup: Unknown subsys name 'rlimit' [ 25.837000][ T24] audit: type=1400 audit(1771116848.240:70): avc: denied { setattr } for pid=284 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 [ 25.860960][ T24] audit: type=1400 audit(1771116848.240:71): avc: denied { create } for pid=284 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 [ 25.882185][ T24] audit: type=1400 audit(1771116848.240:72): avc: denied { write } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.886928][ T286] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.902950][ T24] audit: type=1400 audit(1771116848.240:73): avc: denied { read } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.942744][ T284] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.441702][ T293] request_module fs-gadgetfs succeeded, but still no fs? [ 26.472163][ T295] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 26.992122][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.999481][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.006918][ T325] device bridge_slave_0 entered promiscuous mode [ 27.015248][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.022362][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.029875][ T325] device bridge_slave_1 entered promiscuous mode [ 27.088380][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.095538][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.102882][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.109957][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.133971][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.141597][ T334] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.150291][ T334] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.169587][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.178137][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.185194][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.193108][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.202252][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.209348][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.216797][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.225101][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.241950][ T325] device veth0_vlan entered promiscuous mode [ 27.248392][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.256923][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.265400][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.273118][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.284378][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready 2026/02/15 00:54:09 executed programs: 0 [ 27.293329][ T325] device veth1_macvtap entered promiscuous mode [ 27.303778][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.313542][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.400853][ T357] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.408376][ T357] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.415940][ T357] device bridge_slave_0 entered promiscuous mode [ 27.423105][ T357] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.430189][ T357] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.437572][ T357] device bridge_slave_1 entered promiscuous mode [ 27.468290][ T357] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.475416][ T357] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.482705][ T357] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.489843][ T357] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.506248][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.513807][ T334] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.521269][ T334] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.530771][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.539104][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.546401][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.555216][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.563498][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.570708][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.586601][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.595909][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.613969][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.624890][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.633177][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.640712][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.649380][ T357] device veth0_vlan entered promiscuous mode [ 27.663207][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.672474][ T357] device veth1_macvtap entered promiscuous mode [ 27.685531][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.695761][ T334] 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-build2731409082=/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 4fb8ef376b 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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" ./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=4fb8ef376b21a14e0ed92c40c92913ac567bd2a3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251121-171912" -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=\"4fb8ef376b21a14e0ed92c40c92913ac567bd2a3\" /usr/bin/ld: /tmp/ccikv6Lj.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