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 '10.128.0.82' (ED25519) to the list of known hosts. 2026/02/22 17:32:12 parsed 1 programs [ 29.509745][ T28] audit: type=1400 audit(1771781532.844:64): avc: denied { node_bind } for pid=282 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 29.531449][ T28] audit: type=1400 audit(1771781532.844:65): avc: denied { module_request } for pid=282 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 [ 30.657583][ T28] audit: type=1400 audit(1771781533.994:66): 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 [ 30.661461][ T290] cgroup: Unknown subsys name 'net' [ 30.680381][ T28] audit: type=1400 audit(1771781533.994:67): 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 [ 30.708095][ T28] audit: type=1400 audit(1771781534.024:68): 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 [ 30.708602][ T290] cgroup: Unknown subsys name 'devices' [ 30.847958][ T290] cgroup: Unknown subsys name 'hugetlb' [ 30.853692][ T290] cgroup: Unknown subsys name 'rlimit' [ 30.966354][ T28] audit: type=1400 audit(1771781534.304:69): avc: denied { setattr } for pid=290 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 [ 30.989766][ T28] audit: type=1400 audit(1771781534.304:70): 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 [ 31.010599][ T28] audit: type=1400 audit(1771781534.304:71): 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 [ 31.031599][ T28] audit: type=1400 audit(1771781534.304:72): 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 [ 31.047837][ T293] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 31.052670][ T28] audit: type=1400 audit(1771781534.304:73): 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 Setting up swapspace version 1, size = 127995904 bytes [ 31.345315][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 32.176611][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 32.626763][ T320] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.633861][ T320] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.649910][ T320] device bridge_slave_0 entered promiscuous mode [ 32.666900][ T320] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.673991][ T320] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.682340][ T320] device bridge_slave_1 entered promiscuous mode [ 32.860515][ T320] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.868008][ T320] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.875383][ T320] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.882622][ T320] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.911398][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 32.919386][ T41] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.928195][ T41] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.949531][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 32.957975][ T41] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.965108][ T41] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.973012][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 32.981870][ T41] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.988982][ T41] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.997548][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.005953][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.023531][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 33.036771][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 33.045070][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 33.053607][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 33.062980][ T320] device veth0_vlan entered promiscuous mode [ 33.078417][ T320] device veth1_macvtap entered promiscuous mode [ 33.085838][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 33.098602][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 33.114437][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/02/22 17:32:16 executed programs: 0 [ 33.272596][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.280226][ T369] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.287992][ T369] device bridge_slave_0 entered promiscuous mode [ 33.295137][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.302618][ T369] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.310418][ T369] device bridge_slave_1 entered promiscuous mode [ 33.364008][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.371128][ T369] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.378476][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.385554][ T369] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.405603][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.413500][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.421046][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.431171][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 33.439754][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.448070][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.455125][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.463865][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 33.472556][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.481023][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.488184][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.499949][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 33.508260][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.523583][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 33.532221][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.546682][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 33.555478][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 33.575753][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 33.583985][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 33.592357][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 33.599998][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 33.616339][ T369] device veth0_vlan entered promiscuous mode [ 33.627048][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 33.635444][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 33.644578][ T369] device veth1_macvtap entered promiscuous mode [ 33.654219][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 33.662573][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 33.671071][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 33.686396][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 33.694770][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 33.744489][ T320] syz-executor (320) used greatest stack depth: 21472 bytes left 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-build497838703=/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 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/ccSCpnPa.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