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 '10.128.0.167' (ED25519) to the list of known hosts. 2026/03/26 03:55:55 parsed 1 programs [ 29.243587][ T30] audit: type=1400 audit(1774497355.123:64): avc: denied { node_bind } for pid=281 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 29.268001][ T30] audit: type=1400 audit(1774497355.123:65): avc: denied { module_request } for pid=281 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 [ 29.896246][ T30] audit: type=1400 audit(1774497355.783:66): avc: denied { mounton } for pid=290 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 [ 29.897802][ T290] cgroup: Unknown subsys name 'net' [ 29.920554][ T30] audit: type=1400 audit(1774497355.783:67): avc: denied { mount } for pid=290 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 [ 29.951392][ T30] audit: type=1400 audit(1774497355.813:68): avc: denied { unmount } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 29.951752][ T290] cgroup: Unknown subsys name 'devices' [ 30.097760][ T290] cgroup: Unknown subsys name 'hugetlb' [ 30.104467][ T290] cgroup: Unknown subsys name 'rlimit' [ 30.308689][ T30] audit: type=1400 audit(1774497356.193:69): avc: denied { setattr } for pid=290 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 30.332963][ T30] audit: type=1400 audit(1774497356.193:70): avc: denied { create } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 30.354625][ T30] audit: type=1400 audit(1774497356.193:71): avc: denied { write } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 30.375259][ T30] audit: type=1400 audit(1774497356.193:72): avc: denied { read } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 30.395986][ T30] audit: type=1400 audit(1774497356.193:73): avc: denied { mounton } for pid=290 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 [ 30.403015][ T292] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 30.515392][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 31.039568][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 31.039568][ T300] request_module fs-gadgetfs succeeded, but still no fs? [ 31.168044][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.181422][ T298] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.197089][ T298] device bridge_slave_0 entered promiscuous mode [ 31.256455][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.263816][ T298] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.285229][ T298] device bridge_slave_1 entered promiscuous mode [ 31.563677][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.570901][ T298] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.578666][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.585936][ T298] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.660550][ T303] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.678280][ T303] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.705128][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 31.715939][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.734330][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 31.744034][ T303] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.754557][ T303] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.764454][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 31.773111][ T303] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.780660][ T303] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.794834][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 31.804048][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 31.818717][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 31.832699][ T298] device veth0_vlan entered promiscuous mode [ 31.846173][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 31.855023][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 31.863782][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 31.873082][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 31.882596][ T298] device veth1_macvtap entered promiscuous mode [ 31.893646][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready 2026/03/26 03:55:57 executed programs: 0 [ 31.904075][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 31.983298][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.990914][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.999404][ T358] device bridge_slave_0 entered promiscuous mode [ 32.007391][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.016291][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.024383][ T358] device bridge_slave_1 entered promiscuous mode [ 32.089763][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 32.098617][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 32.108883][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 32.117890][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 32.127756][ T303] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.137671][ T303] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.146530][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 32.167580][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 32.177913][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 32.186671][ T303] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.194208][ T303] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.206991][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 32.215817][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 32.226610][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 32.235124][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 32.257314][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 32.271631][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 32.282334][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 32.292198][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 32.301959][ T358] device veth0_vlan entered promiscuous mode [ 32.318668][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 32.330214][ T358] device veth1_macvtap entered promiscuous mode [ 32.346897][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 32.361478][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 32.374391][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 32.388142][ T303] 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-build2038699890=/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 d6526ea3e6a 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/ccWxhEhj.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