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

goroutine 3784052 [running]:
panic({0x3221e0, 0xc002ba2ff0})
	GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc00a520ea0 sp=0xc00a520de0 pc=0x123685b
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00032a608?, 0x47ac20, 0x36ff00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00a520ec8 sp=0xc00a520ea0 pc=0x120ac1c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc000272500, {0x80aa98, 0xc009f72000}, 0xc003baed80, {0xc000185800?, 0xc0043d00a0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa67 fp=0xc00a521128 sp=0xc00a520ec8 pc=0x1820cc7
gvisor.dev/gvisor/pkg/sentry/fsimpl/sys.(*filesystem).LinkAt(0xc000272500, {0x80aa98, 0xc009f72000}, 0x7f1920?, {0xc000185800?, 0xc0043d00a0?})
	<autogenerated>:1 +0x8a fp=0xc00a521190 sp=0xc00a521128 pc=0x210c84a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc009f728a0?, {0x80aa98, 0xc009f72000}, 0xc000390900?, 0xc008f06101?, 0xc00a521408)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc00a521240 sp=0xc00a521190 pc=0x178585d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc009f72000, 0x1272a65?, 0x1449172?, 0x1272a37?, 0x101aa6fb8?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc00a5214b8 sp=0xc00a521240 pc=0x1c9314c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00a5215f8?, {{0xffffffffffffff9c}, {0x20000040}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc00a521510 sp=0xc00a5214b8 pc=0x1c92d68
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc009f72000, 0x109, {{0xffffffffffffff9c}, {0x20000040}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc00a5219f0 sp=0xc00a521510 pc=0x1aa78d9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc009f72000, 0x0?, {{0xffffffffffffff9c}, {0x20000040}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc00a521a88 sp=0xc00a5219f0 pc=0x1aa96bd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00bdcd1e0?, 0xc007f463c0?, {{0xffffffffffffff9c}, {0x20000040}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc00a521b00 sp=0xc00a521a88 pc=0x1aa906f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc009f72000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc00a521c28 sp=0xc00a521b00 pc=0x1aa8c05
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009f72000?, 0xc009f72000)
	pkg/sentry/kernel/task_run.go:259 +0x1b4b fp=0xc00a521ec8 sp=0xc00a521c28 pc=0x1a936ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc009f72000, 0xeeb9)
	pkg/sentry/kernel/task_run.go:94 +0x36b fp=0xc00a521fb0 sp=0xc00a521ec8 pc=0x1a911cb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc00a521fe0 sp=0xc00a521fb0 pc=0x1aa53e8
runtime.goexit()
	src/runtime/asm_amd64.s:1598 +0x1 fp=0xc00a521fe8 sp=0xc00a521fe0 pc=0x126f701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad