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

goroutine 204826 [running]:
panic({0x1161fc0, 0xc00a4b7cb0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc00201b428 sp=0xc00201b368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x77bf51?, 0x12b0a20, 0x11ae600)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00201b450 sp=0xc00201b428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0092e8000, {0x15759d8, 0xc0030f1500}, 0xc002096900, {0xc003105800?, 0xc006024000?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc00201b688 sp=0xc00201b450 pc=0x7e994a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00013c680?, {0x15759d8, 0xc0030f1500}, 0xc0003a62d0?, 0xc0017a8e00?, 0xc00201b840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc00201b708 sp=0xc00201b688 pc=0x77e9e3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0030f1500, 0x0?, 0x0?, 0x18b35f88?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc00201b900 sp=0xc00201b708 pc=0xaf76d5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc0030f1500?, {{0x20000240}, {0x20000280}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc00201b940 sp=0xc00201b900 pc=0xaf722b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0030f1500, 0x56, {{0x20000240}, {0x20000280}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc00201bc80 sp=0xc00201b940 pc=0x9ac88b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0030f1500, 0x0?, {{0x20000240}, {0x20000280}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc00201bce0 sp=0xc00201bc80 pc=0x9ade74
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0003b8310?, 0xc00201be28?, {{0x20000240}, {0x20000280}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00201bd40 sp=0xc00201bce0 pc=0x9ada65
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0087891e0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc00201be38 sp=0xc00201bd40 pc=0x9ad72c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0012cc700?, 0xc0030f1500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc00201bf60 sp=0xc00201be38 pc=0x99f3bf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0030f1500, 0x14c9)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc00201bfc0 sp=0xc00201bf60 pc=0x99da1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc00201bfe0 sp=0xc00201bfc0 pc=0x9aad0a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00201bfe8 sp=0xc00201bfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105