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 '10.128.1.59' (ED25519) to the list of known hosts. 2025/12/07 14:11:38 parsed 1 programs [ 25.089690][ T28] audit: type=1400 audit(1765116698.775:64): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 25.112123][ T28] audit: type=1400 audit(1765116698.775:65): avc: denied { module_request } for pid=283 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 [ 25.852782][ T28] audit: type=1400 audit(1765116699.545:66): avc: denied { mounton } for pid=292 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 [ 25.853846][ T292] cgroup: Unknown subsys name 'net' [ 25.877102][ T28] audit: type=1400 audit(1765116699.545:67): avc: denied { mount } for pid=292 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 [ 25.910648][ T28] audit: type=1400 audit(1765116699.575:68): avc: denied { unmount } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.910861][ T292] cgroup: Unknown subsys name 'devices' [ 26.063088][ T292] cgroup: Unknown subsys name 'hugetlb' [ 26.069190][ T292] cgroup: Unknown subsys name 'rlimit' [ 26.216435][ T28] audit: type=1400 audit(1765116699.905:69): avc: denied { setattr } for pid=292 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 [ 26.241041][ T28] audit: type=1400 audit(1765116699.905:70): avc: denied { create } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.267480][ T28] audit: type=1400 audit(1765116699.905:71): avc: denied { write } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.277277][ T294] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 26.291249][ T28] audit: type=1400 audit(1765116699.905:72): avc: denied { read } for pid=292 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.323988][ T28] audit: type=1400 audit(1765116699.905:73): avc: denied { mounton } for pid=292 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 [ 26.354825][ T292] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.105694][ T301] request_module fs-gadgetfs succeeded, but still no fs? [ 27.604501][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.612344][ T335] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.619968][ T335] device bridge_slave_0 entered promiscuous mode [ 27.637193][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.647615][ T335] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.660839][ T335] device bridge_slave_1 entered promiscuous mode [ 27.765266][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.773856][ T335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.782835][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.791668][ T335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.842865][ T346] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.860760][ T346] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.876081][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.887203][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.900052][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.911754][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.920913][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.932403][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.942578][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.950710][ T346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.963792][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.974306][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.990100][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.002970][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.012011][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.020350][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.030119][ T335] device veth0_vlan entered promiscuous mode 2025/12/07 14:11:41 executed programs: 0 [ 28.040525][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.050163][ T335] device veth1_macvtap entered promiscuous mode [ 28.060205][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.077960][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.156465][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.164468][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.172287][ T367] device bridge_slave_0 entered promiscuous mode [ 28.180197][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.189041][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.198346][ T367] device bridge_slave_1 entered promiscuous mode [ 28.254041][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.262151][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.270923][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.279895][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.304994][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.313619][ T343] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.322375][ T343] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.339090][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.347897][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.355329][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.366802][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.376657][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.385660][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.404246][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.414149][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.432189][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.443590][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.452151][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.460104][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.468582][ T367] device veth0_vlan entered promiscuous mode [ 28.484502][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.494393][ T367] device veth1_macvtap entered promiscuous mode [ 28.504385][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.519092][ T343] 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-build267951755=/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 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/ccDbQ5oW.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