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 '10.128.0.255' (ED25519) to the list of known hosts. 2025/12/09 11:55:06 parsed 1 programs [ 21.817368][ T28] audit: type=1400 audit(1765281306.543:64): avc: denied { node_bind } for pid=368 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 21.820453][ T28] audit: type=1400 audit(1765281306.543:65): avc: denied { module_request } for pid=368 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 [ 22.502032][ T28] audit: type=1400 audit(1765281307.223:66): avc: denied { mounton } for pid=377 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 [ 22.503079][ T377] cgroup: Unknown subsys name 'net' [ 22.524715][ T28] audit: type=1400 audit(1765281307.223:67): avc: denied { mount } for pid=377 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 [ 22.552016][ T28] audit: type=1400 audit(1765281307.253:68): avc: denied { unmount } for pid=377 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.552163][ T377] cgroup: Unknown subsys name 'devices' [ 22.694655][ T377] cgroup: Unknown subsys name 'hugetlb' [ 22.700266][ T377] cgroup: Unknown subsys name 'rlimit' [ 22.837867][ T28] audit: type=1400 audit(1765281307.563:69): avc: denied { setattr } for pid=377 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 22.861132][ T28] audit: type=1400 audit(1765281307.563:70): avc: denied { create } for pid=377 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.881820][ T28] audit: type=1400 audit(1765281307.563:71): avc: denied { write } for pid=377 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.885505][ T379] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.902483][ T28] audit: type=1400 audit(1765281307.563:72): avc: denied { read } for pid=377 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 [ 22.931040][ T28] audit: type=1400 audit(1765281307.563:73): avc: denied { mounton } for pid=377 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 22.964385][ T377] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.647983][ T385] request_module fs-gadgetfs succeeded, but still no fs? [ 23.794192][ T387] syz-executor (387) used greatest stack depth: 22272 bytes left [ 23.948467][ T395] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.967481][ T395] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.975245][ T395] device bridge_slave_0 entered promiscuous mode [ 24.001733][ T395] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.013037][ T395] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.020490][ T395] device bridge_slave_1 entered promiscuous mode [ 24.224407][ T395] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.231475][ T395] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.238791][ T395] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.245941][ T395] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.270794][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.278920][ T432] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.286892][ T432] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.309118][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.317427][ T432] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.324588][ T432] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.332404][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.341498][ T432] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.348584][ T432] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.356393][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.365028][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.378557][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.389370][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.397424][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.405004][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.413475][ T395] device veth0_vlan entered promiscuous mode 2025/12/09 11:55:09 executed programs: 0 [ 24.423351][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.433445][ T395] device veth1_macvtap entered promiscuous mode [ 24.443561][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.453852][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.524868][ T450] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.531908][ T450] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.539564][ T450] device bridge_slave_0 entered promiscuous mode [ 24.546592][ T450] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.553757][ T450] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.561061][ T450] device bridge_slave_1 entered promiscuous mode [ 24.600752][ T450] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.607810][ T450] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.615089][ T450] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.622113][ T450] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.640890][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.648840][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.656193][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.665764][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.674010][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.681027][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.689795][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.698080][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.705131][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.717504][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.727381][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.740715][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.752041][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.760289][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.768106][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.782209][ T450] device veth0_vlan entered promiscuous mode [ 24.792216][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.801897][ T450] device veth1_macvtap entered promiscuous mode [ 24.815039][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 24.823348][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.832833][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 24.841313][ T10] 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-build1320230090=/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='go1.24.4' 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/ccOUhRN7.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