panic: interface conversion: vfs.DentryImpl is *tmpfs.dentry, not *kernfs.Dentry

goroutine 1130854 [running]:
panic({0x31ed00, 0xc0055cc330})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc007f06e90 sp=0xc007f06dd0 pc=0x12496ba
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc0004d4698?, 0x473860, 0x36bfe0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc007f06eb8 sp=0xc007f06e90 pc=0x121cb9c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0002e8500, {0x834698, 0xc005120a80}, 0xc0056fed80, {0xc006944f00?, 0xc007dce9b0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc007f07118 sp=0xc007f06eb8 pc=0x1827d6e
gvisor.dev/gvisor/pkg/sentry/fsimpl/sys.(*filesystem).LinkAt(0xc0002e8500, {0x834698, 0xc005120a80}, 0x12836c5?, {0xc006944f00?, 0xc007dce9b0?})
	<autogenerated>:1 +0x8a fp=0xc007f07180 sp=0xc007f07118 pc=0x2108e8a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc005121320?, {0x834698, 0xc005120a80}, 0xc0004d4630?, 0xc009219300?, 0xc007f073f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc007f07230 sp=0xc007f07180 pc=0x178cadd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc005120a80, 0x12836c5?, 0x1443bb2?, 0x1283697?, 0x101aa93f8?, 0x400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc007f074a8 sp=0xc007f07230 pc=0x1c9072c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc005120a80?, {{0xffffffffffffff9c}, {0x20000080}, {0x5}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc007f07500 sp=0xc007f074a8 pc=0x1c90348
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005120a80, 0x109, {{0xffffffffffffff9c}, {0x20000080}, {0x5}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc007f079e0 sp=0xc007f07500 pc=0x1aa9d19
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005120a80, 0x0?, {{0xffffffffffffff9c}, {0x20000080}, {0x5}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc007f07a78 sp=0xc007f079e0 pc=0x1aabafd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00377d040?, 0xc005d122d0?, {{0xffffffffffffff9c}, {0x20000080}, {0x5}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc007f07af0 sp=0xc007f07a78 pc=0x1aab4af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005120a80)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc007f07c18 sp=0xc007f07af0 pc=0x1aab045
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc005120a80?, 0xc005120a80)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc007f07ec8 sp=0xc007f07c18 pc=0x1a95b16
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005120a80, 0xae68)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc007f07fb0 sp=0xc007f07ec8 pc=0x1a935fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc007f07fe0 sp=0xc007f07fb0 pc=0x1aa7808
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc007f07fe8 sp=0xc007f07fe0 pc=0x1280741
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad