lost connection to test machine forked to background, child pid 4640 no interfaces have a carrier [ 28.465862][ T4641] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.474245][ T4641] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts. 2023/01/15 05:01:01 fuzzer started 2023/01/15 05:01:01 connecting to host at 10.128.0.169:34323 2023/01/15 05:01:01 checking config... syzkaller login: [ 75.761544][ T7] cfg80211: failed to load regulatory.db [ 91.405536][ T5055] can: request_module (can-proto-0) failed. [ 91.435722][ T5055] can: request_module (can-proto-0) failed. 2023/01/15 05:01:40 enabled syscalls: 1770 2023/01/15 05:01:40 testing simple program... 2023/01/15 05:01:41 execution failed: executor 0: invalid status 0, exit status: exit status 67 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 ip: invalid argument 'add' to 'ip' command 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin ip neigh add 172.20.20.187 lladdr aa:aa:aa:aa:aa:bb dev syz_tun nud permanent' failed: 256 (errno 1) loop failed (errno 0) syzkaller build log: go env (err=) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" 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" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build165653351=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at f48c20b8f nothing to commit, working tree clean GOOS=linux GOARCH=amd64 go install ./syz-fuzzer make fuzzer execprog stress executor make[1]: Entering directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller' make[1]: warning: -j64 forced in makefile: resetting jobserver mode. GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=f48c20b8f9b2a6c26629f11cc15e1c9c316572c8" -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=f48c20b8f9b2a6c26629f11cc15e1c9c316572c8" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=f48c20b8f9b2a6c26629f11cc15e1c9c316572c8" -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 "x86_64-linux-gnu-gcc" -o ./bin/linux_amd64/syz-executor executor/executor_linux.cc \ -pthread -Wall -Wframe-larger-than=8192 -Wparentheses -Werror -O2 \ -static -fpermissive -w -DGOOS=\"linux\" -DGIT_REVISION=\"f48c20b8f9b2a6c26629f11cc15e1c9c316572c8\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'