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

goroutine 3680784 [running]:
panic({0x106ef60, 0xc0018a52c0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc00178f380 sp=0xc00178f2c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc001e44600?, 0x11bd9c0, 0x10bb5a0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00178f3a8 sp=0xc00178f380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc000000be0, {0x1451b58, 0xc0018e2a80}, 0xc001700000, {0xc0003a1d00?, 0xc006daf360?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc00178f5d8 sp=0xc00178f3a8 pc=0x7a1065
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0004ce100?, {0x1451b58, 0xc0018e2a80}, 0xc000400e10?, 0xc0062c0500?, 0xc00178f788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc00178f658 sp=0xc00178f5d8 pc=0x74954f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0018e2a80, 0xa439a0?, 0xc0047e0a30?, 0xe1a86f8c?, 0x0?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc00178f848 sp=0xc00178f658 pc=0xa48e79
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc0018e2a80?, {{0x4}, {0x200001c0}, {0xa}, {0x200002c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc00178f888 sp=0xc00178f848 pc=0xa48af2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0018e2a80, 0x109, {{0x4}, {0x200001c0}, {0xa}, {0x200002c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc00178fc78 sp=0xc00178f888 pc=0x9271f5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0018e2a80, 0xc00506e0d8?, {{0x4}, {0x200001c0}, {0xa}, {0x200002c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc00178fcd8 sp=0xc00178fc78 pc=0x92842a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x2?, 0x0?, {{0x4}, {0x200001c0}, {0xa}, {0x200002c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00178fd38 sp=0xc00178fcd8 pc=0x928105
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0054e6ea0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc00178fe30 sp=0xc00178fd38 pc=0x927e70
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b52180?, 0xc0018e2a80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc00178ff60 sp=0xc00178fe30 pc=0x91c0be
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0018e2a80, 0x8d29)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc00178ffc0 sp=0xc00178ff60 pc=0x91ab3c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc00178ffe0 sp=0xc00178ffc0 pc=0x9259ea
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00178ffe8 sp=0xc00178ffe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef