panic: runtime error: slice bounds out of range [:17] with capacity 16

goroutine 347625 [running]:
DIAGNOSIS:
I0103 04:44:47.400527   45513 x:0] ***************************
I0103 04:44:47.400572   45513 x:0] Args: [/syzkaller/managers/ptrace-direct-overlay-host-race/current/image -root /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=exclusive -overlay -network=host -TESTONLY-unsafe-nonroot debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-race-0]
I0103 04:44:47.400709   45513 x:0] Version release-20191213.0-56-g1f384ac42b9e
I0103 04:44:47.400753   45513 x:0] PID: 45513
I0103 04:44:47.400801   45513 x:0] UID: 0, GID: 0
I0103 04:44:47.400834   45513 x:0] Configuration:
I0103 04:44:47.400860   45513 x:0] 		RootDir: /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root
I0103 04:44:47.400885   45513 x:0] 		Platform: ptrace
I0103 04:44:47.400915   45513 x:0] 		FileAccess: exclusive, overlay: true
I0103 04:44:47.400954   45513 x:0] 		Network: host, logging: false
I0103 04:44:47.401008   45513 x:0] 		Strace: false, max size: 1024, syscalls: []
I0103 04:44:47.401055   45513 x:0] ***************************
W0103 04:44:47.401077   45513 x:0] Block the TERM signal. This is only safe in tests!
D0103 04:44:47.401202   45513 x:0] Load container "/syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0103 04:44:47.415798   45513 x:0] Signal container "ci-gvisor-ptrace-direct-overlay-host-race-0": signal 0
D0103 04:44:47.417189   45513 x:0] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0103 04:44:47.417287   45513 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0103 04:44:47.417632   45513 x:0] urpc: successfully marshalled 123 bytes.
I0103 04:44:47.984236   45513 x:0] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0", PID: 61957
I0103 04:44:47.984333   45513 x:0] Retrieving sandbox stacks
D0103 04:44:47.984370   45513 x:0] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
D0103 04:44:47.984416   45513 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-0"
W0103 04:44:47.984504   45513 x:0] FATAL ERROR: retrieving stacks: connecting to control server at PID 61957: connection refused
retrieving stacks: connecting to control server at PID 61957: connection refused
W0103 04:44:47.984665   45513 x:0] Failure to execute command, err: 1