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

goroutine 1351306 [running]:
panic({0x1161fc0, 0xc006ec89c0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0010d9428 sp=0xc0010d9368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xa8891e0?, 0x12b0a20, 0x11ae600)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0010d9450 sp=0xc0010d9428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc005b9c120, {0x1575998, 0xc005bcc000}, 0xc0001d0d80, {0xc00662aa80?, 0xc000133400?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc0010d9688 sp=0xc0010d9450 pc=0x7e994a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00052e100?, {0x1575998, 0xc005bcc000}, 0xc0070d9000?, 0xc00574dd00?, 0xc0010d9840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc0010d9708 sp=0xc0010d9688 pc=0x77e9e3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc005bcc000, 0xaf64a6?, 0xc005bcc000?, 0xa2415f88?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc0010d9900 sp=0xc0010d9708 pc=0xaf76d5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc005bcc000?, {{0x200000c0}, {0x20000180}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc0010d9940 sp=0xc0010d9900 pc=0xaf722b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005bcc000, 0x56, {{0x200000c0}, {0x20000180}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc0010d9c80 sp=0xc0010d9940 pc=0x9ac88b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005bcc000, 0x85?, {{0x200000c0}, {0x20000180}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc0010d9ce0 sp=0xc0010d9c80 pc=0x9ade74
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x82a44f?, 0x0?, {{0x200000c0}, {0x20000180}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0010d9d40 sp=0xc0010d9ce0 pc=0x9ada65
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00a8895f0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc0010d9e38 sp=0xc0010d9d40 pc=0x9ad72c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00746d400?, 0xc005bcc000)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc0010d9f60 sp=0xc0010d9e38 pc=0x99f3bf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005bcc000, 0xb14b)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc0010d9fc0 sp=0xc0010d9f60 pc=0x99da1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0010d9fe0 sp=0xc0010d9fc0 pc=0x9aad0a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0010d9fe8 sp=0xc0010d9fe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105