panic: runtime error: index out of range
DIAGNOSIS:
I0403 20:48:36.188094   49107 x:0] ***************************
I0403 20:48:36.188208   49107 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 -debug -platform=ptrace -file-access=exclusive -overlay -network=host debug -stacks ci-gvisor-kvm-direct-overlay-host-race-3]
I0403 20:48:36.188614   49107 x:0] Version release-20190304.1-78-gc4caccd54042
I0403 20:48:36.188630   49107 x:0] PID: 49107
I0403 20:48:36.188646   49107 x:0] UID: 0, GID: 0
I0403 20:48:36.188967   49107 x:0] Configuration:
I0403 20:48:36.188979   49107 x:0] 		RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root
I0403 20:48:36.188991   49107 x:0] 		Platform: ptrace
I0403 20:48:36.189015   49107 x:0] 		FileAccess: exclusive, overlay: true
I0403 20:48:36.189036   49107 x:0] 		Network: host, logging: false
I0403 20:48:36.189054   49107 x:0] 		Strace: false, max size: 1024, syscalls: []
I0403 20:48:36.189072   49107 x:0] ***************************
D0403 20:48:36.189248   49107 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-3"
D0403 20:48:36.199917   49107 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-3": signal 0
D0403 20:48:36.200039   49107 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-3"
D0403 20:48:36.200088   49107 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-3"
D0403 20:48:36.200840   49107 x:0] urpc: successfully marshalled 120 bytes.
I0403 20:48:36.507239   49107 x:0] Found sandbox "ci-gvisor-kvm-direct-overlay-host-race-3", PID: 15321
I0403 20:48:36.507358   49107 x:0] Retrieving sandbox stacks
D0403 20:48:36.507385   49107 x:0] Stacks sandbox "ci-gvisor-kvm-direct-overlay-host-race-3"
D0403 20:48:36.507432   49107 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-3"
D0403 20:48:36.507566   49107 x:0] urpc: successfully marshalled 36 bytes.
W0403 20:48:36.565185   49107 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer