panic: runtime error: makeslice: len out of range

DIAGNOSIS:
I0316 21:29:39.895922   51853 main.go:305] ***************************
I0316 21:29:39.895978   51853 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]
I0316 21:29:39.896021   51853 main.go:307] Version release-20200219.0-175-g829beebf0b67
I0316 21:29:39.896042   51853 main.go:308] PID: 51853
I0316 21:29:39.896065   51853 main.go:309] UID: 0, GID: 0
I0316 21:29:39.896088   51853 main.go:310] Configuration:
I0316 21:29:39.896109   51853 main.go:311] 		RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root
I0316 21:29:39.896143   51853 main.go:312] 		Platform: kvm
I0316 21:29:39.896163   51853 main.go:313] 		FileAccess: exclusive, overlay: true
I0316 21:29:39.896194   51853 main.go:314] 		Network: sandbox, logging: false
I0316 21:29:39.896217   51853 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0316 21:29:39.896239   51853 main.go:316] ***************************
D0316 21:29:39.896293   51853 container.go:159] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0316 21:29:39.897740   51853 container.go:592] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-2": signal 0
D0316 21:29:39.897778   51853 sandbox.go:814] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0316 21:29:39.897790   51853 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0316 21:29:39.898101   51853 urpc.go:534] urpc: successfully marshalled 117 bytes.
I0316 21:29:41.032143   51853 debug.go:128] Found sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2", PID: 10071
I0316 21:29:41.032204   51853 debug.go:137] Retrieving sandbox stacks
D0316 21:29:41.032228   51853 sandbox.go:932] Stacks sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
D0316 21:29:41.032241   51853 sandbox.go:318] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-2"
W0316 21:29:41.032280   51853 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 10071: connection refused
retrieving stacks: connecting to control server at PID 10071: connection refused
W0316 21:29:41.032399   51853 main.go:338] Failure to execute command, err: 1