panic: runtime error: index out of range [0] with length 0 goroutine 464468 [running]: panic({0x121bf20, 0xc004dd4060}) GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc001465228 sp=0xc001465168 pc=0x43763a runtime.goPanicIndex(0x0, 0x0) GOROOT/src/runtime/panic.go:113 +0x7f fp=0xc001465268 sp=0xc001465228 pc=0x4354ff gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*lisafsDentry).getRemoteChildAndWalkPathLocked(0xc000347600, {0x1563918, 0xc003f45500}, 0x0?, 0xc000de8090) pkg/sentry/fsimpl/gofer/lisafs_dentry.go:265 +0x351 fp=0xc001465350 sp=0xc001465268 pc=0xd8b411 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*dentry).getRemoteChildAndWalkPathLocked(0xc000347600?, {0x1563918?, 0xc003f45500?}, 0xd8381c?, 0x842de5?) pkg/sentry/fsimpl/gofer/dentry_impl.go:211 +0x65 fp=0xc001465388 sp=0xc001465350 pc=0xd6ca25 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).getChildAndWalkPathLocked(0x0?, {0x1563918, 0xc003f45500}, 0xffffffffffffffff?, 0xc004078000, 0xc001465470?) pkg/sentry/fsimpl/gofer/filesystem.go:265 +0xc6 fp=0xc0014653d0 sp=0xc001465388 pc=0xd72186 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).stepLocked(0xc001465478?, {0x1563918, 0xc003f45500}, 0xc004078000, 0xc000347600, 0x1, 0xc000de8090?) pkg/sentry/fsimpl/gofer/filesystem.go:205 +0x287 fp=0xc001465428 sp=0xc0014653d0 pc=0xd71ae7 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).walkParentDirLocked(0x0?, {0x1563918, 0xc003f45500}, 0xc004078000, 0xc000347600, 0x0?) pkg/sentry/fsimpl/gofer/filesystem.go:313 +0x11d fp=0xc0014654a8 sp=0xc001465428 pc=0xd724bd gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).doCreateAt(0xc0004506c0, {0x1563918, 0xc003f45500}, 0xc004078000, 0x0, 0xc0014656f8, 0x0) pkg/sentry/fsimpl/gofer/filesystem.go:371 +0x1ae fp=0xc0014656c0 sp=0xc0014654a8 pc=0xd72b2e gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).SymlinkAt(0xc004078000?, {0x1563918?, 0xc003f45500?}, 0x154aa60?, {0xc001318200?, 0xc0034db000?}) pkg/sentry/fsimpl/gofer/filesystem.go:1470 +0x85 fp=0xc001465738 sp=0xc0014656c0 pc=0xd7ca25 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc000706100?, {0x1563918, 0xc003f45500}, 0xc0034db000?, 0xc001318300?, {0xc001318200, 0xd}) pkg/sentry/vfs/vfs.go:648 +0x170 fp=0xc001465790 sp=0xc001465738 pc=0x77ec70 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.symlinkat(0xc003f45500, 0x562956921f8c?, 0xffffffff?, 0x0?) pkg/sentry/syscalls/linux/sys_file.go:981 +0x265 fp=0xc001465918 sp=0xc001465790 pc=0xaf2bc5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Symlinkat(0xc003f45500?, {{0x20000080}, {0x3}, {0x20000200}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:961 +0x50 fp=0xc001465948 sp=0xc001465918 pc=0xaf2930 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003f45500, 0x10a, {{0x20000080}, {0x3}, {0x20000200}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc001465c88 sp=0xc001465948 pc=0x9a95eb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003f45500, 0x85?, {{0x20000080}, {0x3}, {0x20000200}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001465ce8 sp=0xc001465c88 pc=0x9aabd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001465d90?, 0x961c46?, {{0x20000080}, {0x3}, {0x20000200}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001465d48 sp=0xc001465ce8 pc=0x9aa7c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004f5a9c0?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc001465e40 sp=0xc001465d48 pc=0x9aa48c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003e4a200?, 0xc003f45500) pkg/sentry/kernel/task_run.go:256 +0x1245 fp=0xc001465f60 sp=0xc001465e40 pc=0x99c345 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003f45500, 0x420f) pkg/sentry/kernel/task_run.go:94 +0x229 fp=0xc001465fc0 sp=0xc001465f60 pc=0x99aa69 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc001465fe0 sp=0xc001465fc0 pc=0x9a7a6a runtime.goexit() src/runtime/asm_amd64.s:1594 +0x1 fp=0xc001465fe8 sp=0xc001465fe0 pc=0x46c521 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x105