panic: runtime error: index out of range
DIAGNOSIS:
I0403 16:09:49.749939    2161 x:0] ***************************
I0403 16:09:49.750072    2161 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-1]
I0403 16:09:49.750145    2161 x:0] Version release-20190304.1-78-gc4caccd54042
I0403 16:09:49.750170    2161 x:0] PID: 2161
I0403 16:09:49.750189    2161 x:0] UID: 0, GID: 0
I0403 16:09:49.750214    2161 x:0] Configuration:
I0403 16:09:49.750226    2161 x:0] 		RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root
I0403 16:09:49.750239    2161 x:0] 		Platform: ptrace
I0403 16:09:49.750275    2161 x:0] 		FileAccess: exclusive, overlay: true
I0403 16:09:49.750323    2161 x:0] 		Network: host, logging: false
I0403 16:09:49.750341    2161 x:0] 		Strace: false, max size: 1024, syscalls: []
I0403 16:09:49.750360    2161 x:0] ***************************
D0403 16:09:49.750417    2161 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-1"
D0403 16:09:49.756944    2161 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-1": signal 0
D0403 16:09:49.757007    2161 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-1"
D0403 16:09:49.757033    2161 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-1"
D0403 16:09:49.759550    2161 x:0] urpc: successfully marshalled 120 bytes.
I0403 16:09:50.531295    2161 x:0] Found sandbox "ci-gvisor-kvm-direct-overlay-host-race-1", PID: 25842
I0403 16:09:50.531367    2161 x:0] Retrieving sandbox stacks
D0403 16:09:50.531392    2161 x:0] Stacks sandbox "ci-gvisor-kvm-direct-overlay-host-race-1"
D0403 16:09:50.531431    2161 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-1"
D0403 16:09:50.531555    2161 x:0] urpc: successfully marshalled 36 bytes.
W0403 16:09:50.605484    2161 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer