panic: runtime error: index out of range DIAGNOSIS: I0403 15:02:17.127692 57935 x:0] *************************** I0403 15:02:17.127753 57935 x:0] Args: [/syzkaller/managers/ptrace-direct-overlay-host/current/image -root /syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=shared -network=host debug -stacks ci-gvisor-ptrace-direct-overlay-host-0] I0403 15:02:17.127768 57935 x:0] Version release-20190304.1-78-gc4caccd54042 I0403 15:02:17.127773 57935 x:0] PID: 57935 I0403 15:02:17.127778 57935 x:0] UID: 0, GID: 0 I0403 15:02:17.127781 57935 x:0] Configuration: I0403 15:02:17.127784 57935 x:0] RootDir: /syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root I0403 15:02:17.127788 57935 x:0] Platform: ptrace I0403 15:02:17.127793 57935 x:0] FileAccess: shared, overlay: false I0403 15:02:17.127807 57935 x:0] Network: host, logging: false I0403 15:02:17.127814 57935 x:0] Strace: false, max size: 1024, syscalls: [] I0403 15:02:17.127818 57935 x:0] *************************** D0403 15:02:17.127858 57935 x:0] Load container "/syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-0" D0403 15:02:17.133817 57935 x:0] Signal container "ci-gvisor-ptrace-direct-overlay-host-0": signal 0 D0403 15:02:17.133846 57935 x:0] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-0" D0403 15:02:17.133851 57935 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-0" D0403 15:02:17.134077 57935 x:0] urpc: successfully marshalled 118 bytes. I0403 15:02:17.562913 57935 x:0] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-0", PID: 982 I0403 15:02:17.562940 57935 x:0] Retrieving sandbox stacks D0403 15:02:17.562945 57935 x:0] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-0" D0403 15:02:17.562950 57935 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-0" D0403 15:02:17.563038 57935 x:0] urpc: successfully marshalled 36 bytes. W0403 15:02:17.611587 57935 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-ptrace-direct-overlay-host-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer retrieving stacks: getting sandbox "ci-gvisor-ptrace-direct-overlay-host-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer