panic: runtime error: index out of range [0] with length 0 goroutine 1150557 [running]: panic({0x121bf20, 0xc008170e28}) GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000b0b2d8 sp=0xc000b0b218 pc=0x43763a runtime.goPanicIndex(0x0, 0x0) GOROOT/src/runtime/panic.go:113 +0x7f fp=0xc000b0b318 sp=0xc000b0b2d8 pc=0x4354ff gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*lisafsDentry).getRemoteChildAndWalkPathLocked(0xc0006ba000, {0x1563918, 0xc002237500}, 0x0?, 0xc000b0b598) pkg/sentry/fsimpl/gofer/lisafs_dentry.go:265 +0x351 fp=0xc000b0b400 sp=0xc000b0b318 pc=0xd8b411 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*dentry).getRemoteChildAndWalkPathLocked(0xc0006ba000?, {0x1563918?, 0xc002237500?}, 0xd8381c?, 0xc0043fe480?) pkg/sentry/fsimpl/gofer/dentry_impl.go:211 +0x65 fp=0xc000b0b438 sp=0xc000b0b400 pc=0xd6ca25 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).getChildAndWalkPathLocked(0xc000b0b4b8?, {0x1563918, 0xc002237500}, 0x0?, 0xc002eee000, 0xc000b0b598?) pkg/sentry/fsimpl/gofer/filesystem.go:265 +0xc6 fp=0xc000b0b480 sp=0xc000b0b438 pc=0xd72186 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).stepLocked(0xc0003f7440?, {0x1563918, 0xc002237500}, 0xc002eee000, 0xc0006ba000, 0x1, 0xc002eee000?) pkg/sentry/fsimpl/gofer/filesystem.go:205 +0x287 fp=0xc000b0b4d8 sp=0xc000b0b480 pc=0xd71ae7 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).walkParentDirLocked(0xc000b0b570?, {0x1563918, 0xc002237500}, 0xc002eee000, 0xc0006ba000, 0x1563918?) pkg/sentry/fsimpl/gofer/filesystem.go:313 +0x11d fp=0xc000b0b558 sp=0xc000b0b4d8 pc=0xd724bd gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).GetParentDentryAt(0xc0003f7440, {0x1563918, 0xc002237500}, 0xc002eee000) pkg/sentry/fsimpl/gofer/filesystem.go:712 +0x151 fp=0xc000b0b5f8 sp=0xc000b0b558 pc=0xd75a71 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).getParentDirAndName(0xc00611d800?, {0x1563918, 0xc002237500}, 0xc000b0b670?, 0xc000b0b700?) pkg/sentry/vfs/vfs.go:250 +0x7a fp=0xc000b0b668 sp=0xc000b0b5f8 pc=0x77ca3a gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).RenameAt(0xc0006a6100?, {0x1563918, 0xc002237500}, 0xc00611d800?, 0xc000b0b7f8, 0xc000b0b848, 0xc000b0b7b0) pkg/sentry/vfs/vfs.go:497 +0xb0 fp=0xc000b0b710 sp=0xc000b0b668 pc=0x77dbf0 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.renameat(0xc002237500, 0x101?, 0x0?, 0xbe362f88?, 0x0?, 0x0) pkg/sentry/syscalls/linux/sys_file.go:1579 +0x386 fp=0xc000b0b908 sp=0xc000b0b710 pc=0xaf7106 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Rename(0xc002237500?, {{0x20000080}, {0x200000c0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:1535 +0x4b fp=0xc000b0b948 sp=0xc000b0b908 pc=0xaf6c0b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc002237500, 0x52, {{0x20000080}, {0x200000c0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000b0bc88 sp=0xc000b0b948 pc=0x9a95eb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc002237500, 0x85?, {{0x20000080}, {0x200000c0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000b0bce8 sp=0xc000b0bc88 pc=0x9aabd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b0bd90?, 0x961c46?, {{0x20000080}, {0x200000c0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000b0bd48 sp=0xc000b0bce8 pc=0x9aa7c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005a30410?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000b0be40 sp=0xc000b0bd48 pc=0x9aa48c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001b95f80?, 0xc002237500) pkg/sentry/kernel/task_run.go:256 +0x1245 fp=0xc000b0bf60 sp=0xc000b0be40 pc=0x99c345 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc002237500, 0xa3e8) pkg/sentry/kernel/task_run.go:94 +0x229 fp=0xc000b0bfc0 sp=0xc000b0bf60 pc=0x99aa69 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000b0bfe0 sp=0xc000b0bfc0 pc=0x9a7a6a runtime.goexit() src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000b0bfe8 sp=0xc000b0bfe0 pc=0x46c521 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x105