panic: runtime error: makeslice: len out of range

DIAGNOSIS:
I0315 15:40:29.843559   43945 main.go:305] ***************************
I0315 15:40:29.843625   43945 main.go:306] Args: [/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -overlay -network=sandbox debug -stacks --ps ci-gvisor-kvm-proxy-overlay-sandbox-2]
I0315 15:40:29.843685   43945 main.go:307] Version release-20200219.0-175-g829beebf0b67
I0315 15:40:29.843709   43945 main.go:308] PID: 43945
I0315 15:40:29.843736   43945 main.go:309] UID: 0, GID: 0
I0315 15:40:29.843759   43945 main.go:310] Configuration:
I0315 15:40:29.843781   43945 main.go:311] 		RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root
I0315 15:40:29.843847   43945 main.go:312] 		Platform: kvm
I0315 15:40:29.843872   43945 main.go:313] 		FileAccess: exclusive, overlay: true
I0315 15:40:29.843912   43945 main.go:314] 		Network: sandbox, logging: false
I0315 15:40:29.843950   43945 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0315 15:40:29.843978   43945 main.go:316] ***************************
D0315 15:40:29.844058   43945 container.go:159] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0315 15:40:29.846073   43945 container.go:592] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-2": signal 0
D0315 15:40:29.848184   43945 sandbox.go:814] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0315 15:40:29.853177   43945 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0315 15:40:29.853496   43945 urpc.go:534] urpc: successfully marshalled 117 bytes.
I0315 15:40:30.647450   43945 debug.go:128] Found sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2", PID: 22813
I0315 15:40:30.647494   43945 debug.go:137] Retrieving sandbox stacks
D0315 15:40:30.647518   43945 sandbox.go:932] Stacks sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0315 15:40:30.647533   43945 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
W0315 15:40:30.647584   43945 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 22813: connection refused
retrieving stacks: connecting to control server at PID 22813: connection refused
W0315 15:40:30.647749   43945 main.go:338] Failure to execute command, err: 1