I0828 07:30:09.829667 34328 x:0] *************************** I0828 07:30:09.829831 34328 x:0] Args: [/syzkaller/managers/kvm-direct-overlay-host-race/current/image -root /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -platform=ptrace -file-access=direct -overlay -network=host exec -user=0:0 -cap CAP_CHOWN -cap CAP_DAC_OVERRIDE -cap CAP_DAC_READ_SEARCH -cap CAP_FOWNER -cap CAP_FSETID -cap CAP_KILL -cap CAP_SETGID -cap CAP_SETUID -cap CAP_SETPCAP -cap CAP_LINUX_IMMUTABLE -cap CAP_NET_BIND_SERVICE -cap CAP_NET_BROADCAST -cap CAP_NET_ADMIN -cap CAP_NET_RAW -cap CAP_IPC_LOCK -cap CAP_IPC_OWNER -cap CAP_SYS_MODULE -cap CAP_SYS_RAWIO -cap CAP_SYS_CHROOT -cap CAP_SYS_PTRACE -cap CAP_SYS_PACCT -cap CAP_SYS_ADMIN -cap CAP_SYS_BOOT -cap CAP_SYS_NICE -cap CAP_SYS_RESOURCE -cap CAP_SYS_TIME -cap CAP_SYS_TTY_CONFIG -cap CAP_MKNOD -cap CAP_LEASE -cap CAP_AUDIT_WRITE -cap CAP_AUDIT_CONTROL -cap CAP_SETFCAP -cap CAP_MAC_OVERRIDE -cap CAP_MAC_ADMIN -cap CAP_SYSLOG -cap CAP_WAKE_ALARM -cap CAP_BLOCK_SUSPEND -cap CAP_AUDIT_READ ci-gvisor-kvm-direct-overlay-host-race-3 /syz-fuzzer -executor=/syz-executor -name=vm-3 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false -runtest=false] I0828 07:30:09.830115 34328 x:0] Git Revision: d4d5ed1d9def507b1f2ff3ff8ec75813e931f129 I0828 07:30:09.830159 34328 x:0] PID: 34328 I0828 07:30:09.830191 34328 x:0] UID: 0, GID: 0 I0828 07:30:09.830218 34328 x:0] Configuration: I0828 07:30:09.830237 34328 x:0] RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root I0828 07:30:09.830284 34328 x:0] Platform: ptrace I0828 07:30:09.830343 34328 x:0] FileAccess: direct, overlay: true I0828 07:30:09.830382 34328 x:0] Network: host, logging: false I0828 07:30:09.830421 34328 x:0] Strace: false, max size: 1024, syscalls: [] I0828 07:30:09.830443 34328 x:0] *************************** I0828 07:30:09.837175 33903 x:0] EXEC: [/syz-fuzzer -executor=/syz-executor -name=vm-3 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false -runtest=false] I0828 07:30:09.884301 33903 x:0] CalibratedClock(Monotonic): ready I0828 07:30:09.885252 33903 x:0] CalibratedClock(Realtime): ready 2018/08/28 07:30:10 fuzzer started 2018/08/28 07:30:11 dialing manager at stdin 2018/08/28 07:30:11 syscalls: 1 2018/08/28 07:30:11 code coverage: debugfs is not enabled or not mounted 2018/08/28 07:30:11 comparison tracing: debugfs is not enabled or not mounted 2018/08/28 07:30:11 setuid sandbox: enabled 2018/08/28 07:30:11 namespace sandbox: enabled 2018/08/28 07:30:11 fault injection: CONFIG_FAULT_INJECTION is not enabled 2018/08/28 07:30:11 leak checking: debugfs is not enabled or not mounted 2018/08/28 07:30:11 net packed injection: /dev/net/tun does not exist 2018/08/28 07:30:11 net device setup: ip command is not found unexpected fault address 0xc4232b8a60 fatal error: fault [signal SIGBUS: bus error code=0x2 addr=0xc4232b8a60 pc=0x707d26] goroutine 1 [running]: runtime.throw(0x86fd91, 0x5) /syzkaller/go/src/runtime/panic.go:616 +0x81 fp=0xc421b39a28 sp=0xc421b39a08 pc=0x42aa61 runtime.sigpanic() /syzkaller/go/src/runtime/signal_unix.go:385 +0x273 fp=0xc421b39a78 sp=0xc421b39a28 pc=0x4402d3 github.com/google/syzkaller/prog.(*Target).calcStaticPriorities(0xc420270180, 0x40b3bd, 0xc421d89c80, 0xc4480b08) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:51 +0x1d6 fp=0xc421b39c18 sp=0xc421b39a78 pc=0x707d26 github.com/google/syzkaller/prog.(*Target).CalculatePriorities(0xc420270180, 0xc42224c000, 0x25d3, 0x3000, 0xc4205bc088, 0x8, 0xc42011c0f0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:28 +0x2f fp=0xc421b39c70 sp=0xc421b39c18 pc=0x707a6f main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:229 +0xf85 fp=0xc421b39f88 sp=0xc421b39c70 pc=0x776095 runtime.main() /syzkaller/go/src/runtime/proc.go:198 +0x212 fp=0xc421b39fe0 sp=0xc421b39f88 pc=0x42c2d2 runtime.goexit() /syzkaller/go/src/runtime/asm_amd64.s:2361 +0x1 fp=0xc421b39fe8 sp=0xc421b39fe0 pc=0x459bb1 goroutine 33 [syscall]: os/signal.signal_recv(0x0) /syzkaller/go/src/runtime/sigqueue.go:139 +0xa6 os/signal.loop() /syzkaller/go/src/os/signal/signal_unix.go:22 +0x22 created by os/signal.init.0 /syzkaller/go/src/os/signal/signal_unix.go:28 +0x41 goroutine 89 [chan receive]: github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc4201420c0) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:74 +0xd0 created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts /syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:71 +0x3f goroutine 90 [chan receive]: main.main.func1(0xc4201420c0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:130 +0x34 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:128 +0x504 goroutine 114 [select, locked to thread]: runtime.gopark(0x900130, 0x0, 0x872733, 0x6, 0x18, 0x1) /syzkaller/go/src/runtime/proc.go:291 +0x11a runtime.selectgo(0xc42040c750, 0xc4201f80c0) /syzkaller/go/src/runtime/select.go:392 +0xe50 runtime.ensureSigM.func1() /syzkaller/go/src/runtime/signal_unix.go:549 +0x1f4 runtime.goexit() /syzkaller/go/src/runtime/asm_amd64.s:2361 +0x1 goroutine 23 [IO wait]: internal/poll.runtime_pollWait(0x2b8358751f00, 0x72, 0xc4206a1958) /syzkaller/go/src/runtime/netpoll.go:173 +0x57 internal/poll.(*pollDesc).wait(0xc4201f4498, 0x72, 0xffffffffffffff00, 0x957e60, 0xb22478) /syzkaller/go/src/internal/poll/fd_poll_runtime.go:85 +0x9b internal/poll.(*pollDesc).waitRead(0xc4201f4498, 0xc420618000, 0x1000, 0x1000) /syzkaller/go/src/internal/poll/fd_poll_runtime.go:90 +0x3d internal/poll.(*FD).Read(0xc4201f4480, 0xc420618000, 0x1000, 0x1000, 0x0, 0x0, 0x0) /syzkaller/go/src/internal/poll/fd_unix.go:157 +0x17d net.(*netFD).Read(0xc4201f4480, 0xc420618000, 0x1000, 0x1000, 0x8000, 0x1, 0x4269fe) /syzkaller/go/src/net/fd_unix.go:202 +0x4f net.(*conn).Read(0xc42011a058, 0xc420618000, 0x1000, 0x1000, 0x0, 0x0, 0x0) /syzkaller/go/src/net/net.go:176 +0x6a bufio.(*Reader).fill(0xc420616000) /syzkaller/go/src/bufio/bufio.go:100 +0x11e bufio.(*Reader).ReadByte(0xc420616000, 0xc4206a1b78, 0x429c0b, 0x459c74) /syzkaller/go/src/bufio/bufio.go:242 +0x39 compress/flate.(*decompressor).moreBits(0xc420540000, 0x459c74, 0xc420026708) /syzkaller/go/src/compress/flate/inflate.go:694 +0x37 compress/flate.(*decompressor).nextBlock(0xc420540000) /syzkaller/go/src/compress/flate/inflate.go:303 +0x39 compress/flate.(*decompressor).Read(0xc420540000, 0xc4205fc000, 0x1000, 0x1000, 0x459c74, 0xc420026710, 0xc42195c0c0) /syzkaller/go/src/compress/flate/inflate.go:347 +0x72 github.com/google/syzkaller/pkg/rpctype.(*flateConn).Read(0xc4201e6360, 0xc4205fc000, 0x1000, 0x1000, 0x9, 0xc420026570, 0x1) /syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:131 +0x51 bufio.(*Reader).Read(0xc420616060, 0xc42026a040, 0x1, 0x9, 0xc4206a1cd8, 0x459c74, 0x41113e) /syzkaller/go/src/bufio/bufio.go:216 +0x238 io.ReadAtLeast(0x956b20, 0xc420616060, 0xc42026a040, 0x1, 0x9, 0x1, 0x1, 0xc4205fe000, 0xc4205fe028) /syzkaller/go/src/io/io.go:309 +0x86 io.ReadFull(0x956b20, 0xc420616060, 0xc42026a040, 0x1, 0x9, 0xc42026c518, 0x4269fe, 0x9001b8) /syzkaller/go/src/io/io.go:327 +0x58 encoding/gob.decodeUintReader(0x956b20, 0xc420616060, 0xc42026a040, 0x9, 0x9, 0x20, 0xc4200266d0, 0x9, 0x1) /syzkaller/go/src/encoding/gob/decode.go:120 +0x63 encoding/gob.(*Decoder).recvMessage(0xc4205fa000, 0x0) /syzkaller/go/src/encoding/gob/decoder.go:80 +0x57 encoding/gob.(*Decoder).decodeTypeSequence(0xc4205fa000, 0x900200, 0xc4205fa000) /syzkaller/go/src/encoding/gob/decoder.go:142 +0x136 encoding/gob.(*Decoder).DecodeValue(0xc4205fa000, 0x7b8be0, 0xc4201124b0, 0x16, 0x0, 0x0) /syzkaller/go/src/encoding/gob/decoder.go:210 +0xdc encoding/gob.(*Decoder).Decode(0xc4205fa000, 0x7b8be0, 0xc4201124b0, 0x30, 0x30) /syzkaller/go/src/encoding/gob/decoder.go:187 +0x14f net/rpc.(*gobClientCodec).ReadResponseHeader(0xc4201e6450, 0xc4201124b0, 0xc42257a2a0, 0x0) /syzkaller/go/src/net/rpc/client.go:223 +0x45 net/rpc.(*Client).input(0xc420616120) /syzkaller/go/src/net/rpc/client.go:109 +0xa7 created by net/rpc.NewClientWithCodec /syzkaller/go/src/net/rpc/client.go:201 +0x92 I0828 07:30:19.934360 34328 x:0] Exiting with status: 512