panic: runtime error: index out of range [0] with length 0 goroutine 624124 [running]: panic({0x121bf20, 0xc0042b98d8}) GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000ef1178 sp=0xc000ef10b8 pc=0x43763a runtime.goPanicIndex(0x0, 0x0) GOROOT/src/runtime/panic.go:113 +0x7f fp=0xc000ef11b8 sp=0xc000ef1178 pc=0x4354ff gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*lisafsDentry).getRemoteChildAndWalkPathLocked(0xc00038f600, {0x1563918, 0xc0021a0000}, 0x0?, 0xc000da09b8) pkg/sentry/fsimpl/gofer/lisafs_dentry.go:265 +0x351 fp=0xc000ef12a0 sp=0xc000ef11b8 pc=0xd8b411 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*dentry).getRemoteChildAndWalkPathLocked(0xc00038f600?, {0x1563918?, 0xc0021a0000?}, 0xd8381c?, 0x173c69a6671b54bb?) pkg/sentry/fsimpl/gofer/dentry_impl.go:211 +0x65 fp=0xc000ef12d8 sp=0xc000ef12a0 pc=0xd6ca25 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).getChildAndWalkPathLocked(0x30?, {0x1563918, 0xc0021a0000}, 0x4221c7?, 0xc001126480, 0xc000ef13c0?) pkg/sentry/fsimpl/gofer/filesystem.go:265 +0xc6 fp=0xc000ef1320 sp=0xc000ef12d8 pc=0xd72186 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).stepLocked(0x954193?, {0x1563918, 0xc0021a0000}, 0xc001126480, 0xc00038f600, 0x1, 0xc000da09b8?) pkg/sentry/fsimpl/gofer/filesystem.go:205 +0x287 fp=0xc000ef1378 sp=0xc000ef1320 pc=0xd71ae7 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).walkParentDirLocked(0x3000?, {0x1563918, 0xc0021a0000}, 0xc001126480, 0xc00038f600, 0xc000ef1460?) pkg/sentry/fsimpl/gofer/filesystem.go:313 +0x11d fp=0xc000ef13f8 sp=0xc000ef1378 pc=0xd724bd gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).doCreateAt(0xc0006647e0, {0x1563918, 0xc0021a0000}, 0xc001126480, 0x0, 0xc000ef1650, 0x0) pkg/sentry/fsimpl/gofer/filesystem.go:371 +0x1ae fp=0xc000ef1610 sp=0xc000ef13f8 pc=0xd72b2e gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).LinkAt(0xc001126480?, {0x1563918?, 0xc0021a0000?}, 0x154aa60?, {0xc000796100?, 0xc00038f600?}) pkg/sentry/fsimpl/gofer/filesystem.go:724 +0x8d fp=0xc000ef1690 sp=0xc000ef1610 pc=0xd75c8d gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000796100?, {0x1563918, 0xc0021a0000}, 0xc0018e8800?, 0xc006511800?, 0xc000ef1848) pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc000ef1710 sp=0xc000ef1690 pc=0x77cda3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0021a0000, 0xaf2930?, 0xc0021a0000?, 0xdbb54f8c?, 0x0?, 0x0) pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc000ef1908 sp=0xc000ef1710 pc=0xaf3275 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc0021a0000?, {{0x20000140}, {0x20000200}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc000ef1948 sp=0xc000ef1908 pc=0xaf2dcb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0021a0000, 0x56, {{0x20000140}, {0x20000200}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000ef1c88 sp=0xc000ef1948 pc=0x9a95eb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0021a0000, 0x85?, {{0x20000140}, {0x20000200}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000ef1ce8 sp=0xc000ef1c88 pc=0x9aabd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000ef1d90?, 0x961c46?, {{0x20000140}, {0x20000200}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000ef1d48 sp=0xc000ef1ce8 pc=0x9aa7c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc008511d40?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000ef1e40 sp=0xc000ef1d48 pc=0x9aa48c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004ef8000?, 0xc0021a0000) pkg/sentry/kernel/task_run.go:256 +0x1245 fp=0xc000ef1f60 sp=0xc000ef1e40 pc=0x99c345 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0021a0000, 0x5653) pkg/sentry/kernel/task_run.go:94 +0x229 fp=0xc000ef1fc0 sp=0xc000ef1f60 pc=0x99aa69 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000ef1fe0 sp=0xc000ef1fc0 pc=0x9a7a6a runtime.goexit() src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000ef1fe8 sp=0xc000ef1fe0 pc=0x46c521 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x105