panic: runtime error: index out of range [0] with length 0 goroutine 696099 [running]: panic({0x122c2c0, 0xc0007ef5d8}) GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000c53228 sp=0xc000c53168 pc=0x43763a runtime.goPanicIndex(0x0, 0x0) GOROOT/src/runtime/panic.go:113 +0x7f fp=0xc000c53268 sp=0xc000c53228 pc=0x4354ff gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*lisafsDentry).getRemoteChildAndWalkPathLocked(0xc00038f600, {0x1576158, 0xc0089fd500}, 0x0?, 0xc004abb6a0) pkg/sentry/fsimpl/gofer/lisafs_dentry.go:265 +0x351 fp=0xc000c53350 sp=0xc000c53268 pc=0xd9b311 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*dentry).getRemoteChildAndWalkPathLocked(0xc00038f600?, {0x1576158?, 0xc0089fd500?}, 0xd9371c?, 0x852e25?) pkg/sentry/fsimpl/gofer/dentry_impl.go:211 +0x65 fp=0xc000c53388 sp=0xc000c53350 pc=0xd7c925 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).getChildAndWalkPathLocked(0x0?, {0x1576158, 0xc0089fd500}, 0xffffffffffffffff?, 0xc001f2e480, 0xc000c53470?) pkg/sentry/fsimpl/gofer/filesystem.go:265 +0xc6 fp=0xc000c533d0 sp=0xc000c53388 pc=0xd82086 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).stepLocked(0xc000c53478?, {0x1576158, 0xc0089fd500}, 0xc001f2e480, 0xc00038f600, 0x1, 0xc004abb6a0?) pkg/sentry/fsimpl/gofer/filesystem.go:205 +0x287 fp=0xc000c53428 sp=0xc000c533d0 pc=0xd819e7 gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).walkParentDirLocked(0x0?, {0x1576158, 0xc0089fd500}, 0xc001f2e480, 0xc00038f600, 0xc000c534e8?) pkg/sentry/fsimpl/gofer/filesystem.go:313 +0x11d fp=0xc000c534a8 sp=0xc000c53428 pc=0xd823bd gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).doCreateAt(0xc0001d2480, {0x1576158, 0xc0089fd500}, 0xc001f2e480, 0x0, 0xc000c536f8, 0x0) pkg/sentry/fsimpl/gofer/filesystem.go:371 +0x1ae fp=0xc000c536c0 sp=0xc000c534a8 pc=0xd82a2e gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).SymlinkAt(0xc001f2e480?, {0x1576158?, 0xc0089fd500?}, 0x155d1e0?, {0xc0084c5100?, 0xc006cdfc00?}) pkg/sentry/fsimpl/gofer/filesystem.go:1470 +0x85 fp=0xc000c53738 sp=0xc000c536c0 pc=0xd8c925 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0001f0080?, {0x1576158, 0xc0089fd500}, 0xc006cdfc00?, 0xc0084c5200?, {0xc0084c5100, 0x7}) pkg/sentry/vfs/vfs.go:648 +0x170 fp=0xc000c53790 sp=0xc000c53738 pc=0x78ee50 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.symlinkat(0xc0089fd500, 0x5618040abf88?, 0x0?, 0x0?) pkg/sentry/syscalls/linux/sys_file.go:981 +0x265 fp=0xc000c53918 sp=0xc000c53790 pc=0xb02ac5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Symlinkat(0xc0089fd500?, {{0x20000040}, {0x3}, {0x20000100}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:961 +0x50 fp=0xc000c53948 sp=0xc000c53918 pc=0xb02830 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0089fd500, 0x10a, {{0x20000040}, {0x3}, {0x20000100}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000c53c88 sp=0xc000c53948 pc=0x9b95ab gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0089fd500, 0x85?, {{0x20000040}, {0x3}, {0x20000100}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000c53ce8 sp=0xc000c53c88 pc=0x9bab94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000c53d90?, 0x971c06?, {{0x20000040}, {0x3}, {0x20000100}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000c53d48 sp=0xc000c53ce8 pc=0x9ba785 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004daa340?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000c53e40 sp=0xc000c53d48 pc=0x9ba44c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0040dc400?, 0xc0089fd500) pkg/sentry/kernel/task_run.go:256 +0x1245 fp=0xc000c53f60 sp=0xc000c53e40 pc=0x9ac305 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0089fd500, 0x4b7e) pkg/sentry/kernel/task_run.go:94 +0x229 fp=0xc000c53fc0 sp=0xc000c53f60 pc=0x9aaa29 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000c53fe0 sp=0xc000c53fc0 pc=0x9b7a2a runtime.goexit() src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000c53fe8 sp=0xc000c53fe0 pc=0x46c521 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x105