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 '10.128.10.5' (ED25519) to the list of known hosts. 2026/01/16 04:13:26 parsed 1 programs [ 25.740316][ T24] audit: type=1400 audit(1768536806.440:64): 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 [ 25.761060][ T24] audit: type=1400 audit(1768536806.440:65): 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 [ 25.780797][ T24] audit: type=1400 audit(1768536806.440:66): 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 [ 26.699265][ T24] audit: type=1400 audit(1768536807.400:67): avc: denied { mounton } for pid=283 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 [ 26.702783][ T283] cgroup: Unknown subsys name 'net' [ 26.722082][ T24] audit: type=1400 audit(1768536807.400:68): avc: denied { mount } for pid=283 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 [ 26.749418][ T24] audit: type=1400 audit(1768536807.430:69): avc: denied { unmount } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 26.749848][ T283] cgroup: Unknown subsys name 'devices' [ 26.950238][ T283] cgroup: Unknown subsys name 'hugetlb' [ 26.955877][ T283] cgroup: Unknown subsys name 'rlimit' [ 27.106756][ T24] audit: type=1400 audit(1768536807.800:70): avc: denied { setattr } for pid=283 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 [ 27.130627][ T24] audit: type=1400 audit(1768536807.800:71): avc: denied { create } for pid=283 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 [ 27.149462][ T286] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 27.151305][ T24] audit: type=1400 audit(1768536807.800:72): avc: denied { write } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.180056][ T24] audit: type=1400 audit(1768536807.810:73): avc: denied { read } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.200543][ T283] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.694787][ T296] request_module fs-gadgetfs succeeded, but still no fs? [ 27.719968][ T293] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 27.770203][ T294] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.839882][ T294] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.847498][ T294] device bridge_slave_0 entered promiscuous mode [ 27.882284][ T294] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.908533][ T294] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.916449][ T294] device bridge_slave_1 entered promiscuous mode [ 28.079442][ T294] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.086520][ T294] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.093970][ T294] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.101142][ T294] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.195436][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.208719][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.228846][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 28.246662][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.290400][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.323889][ T112] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.331136][ T112] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.363703][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.371989][ T112] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.379154][ T112] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.406809][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.415126][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.464622][ T294] device veth0_vlan entered promiscuous mode [ 28.493165][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.502399][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.510814][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.519410][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.532844][ T294] device veth1_macvtap entered promiscuous mode [ 28.548227][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.562500][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.584668][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/01/16 04:13:29 executed programs: 0 [ 28.742961][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.750086][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.757518][ T358] device bridge_slave_0 entered promiscuous mode [ 28.764829][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.772372][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.779877][ T358] device bridge_slave_1 entered promiscuous mode [ 28.816649][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.823721][ T358] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.831049][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.838171][ T358] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.856908][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.864613][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.872275][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.881673][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.890232][ T112] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.897260][ T112] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.906192][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.914544][ T112] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.921644][ T112] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.934042][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.943651][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.957642][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.969246][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.977362][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.985127][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.000267][ T358] device veth0_vlan entered promiscuous mode [ 29.010256][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 29.019660][ T358] device veth1_macvtap entered promiscuous mode [ 29.029442][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.045810][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 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-build3979706199=/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/ccSyk6XI.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