panic: runtime error: index out of range [1] with length 0 goroutine 566 [running]: encoding/binary.littleEndian.Uint16(...) DIAGNOSIS: I0301 09:59:52.222330 42050 main.go:296] *************************** I0301 09:59:52.222379 42050 main.go:297] Args: [/syzkaller/managers/kvm-direct-sandbox/current/image -root /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -network=sandbox debug -stacks --ps ci-gvisor-kvm-direct-sandbox-2] I0301 09:59:52.222413 42050 main.go:298] Version release-20200219.0-52-gabf7ebcd38e8 I0301 09:59:52.222437 42050 main.go:299] PID: 42050 I0301 09:59:52.222455 42050 main.go:300] UID: 0, GID: 0 I0301 09:59:52.222499 42050 main.go:301] Configuration: I0301 09:59:52.222517 42050 main.go:302] RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root I0301 09:59:52.222539 42050 main.go:303] Platform: kvm I0301 09:59:52.222557 42050 main.go:304] FileAccess: exclusive, overlay: false I0301 09:59:52.222583 42050 main.go:305] Network: sandbox, logging: false I0301 09:59:52.222601 42050 main.go:306] Strace: false, max size: 1024, syscalls: [] I0301 09:59:52.222625 42050 main.go:307] *************************** D0301 09:59:52.222670 42050 container.go:158] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-2" D0301 09:59:52.223896 42050 container.go:591] Signal container "ci-gvisor-kvm-direct-sandbox-2": signal 0 D0301 09:59:52.223929 42050 sandbox.go:788] Signal sandbox "ci-gvisor-kvm-direct-sandbox-2" D0301 09:59:52.223954 42050 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-2" D0301 09:59:52.224074 42050 urpc.go:534] urpc: successfully marshalled 110 bytes. I0301 09:59:52.388123 42050 debug.go:122] Found sandbox "ci-gvisor-kvm-direct-sandbox-2", PID: 36562 I0301 09:59:52.388194 42050 debug.go:131] Retrieving sandbox stacks D0301 09:59:52.388253 42050 sandbox.go:906] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-2" D0301 09:59:52.388276 42050 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-2" D0301 09:59:52.388382 42050 urpc.go:534] urpc: successfully marshalled 36 bytes. W0301 09:59:52.400197 42050 error.go:48] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer W0301 09:59:52.400330 42050 main.go:329] Failure to execute command, err: 1