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

goroutine 258 [running]:
panic({0x106b6c0, 0xc00059d0b0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc00069f380 sp=0xc00069f2c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x10090e2c5?, 0x11b9ce0, 0x10b7be0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00069f3a8 sp=0xc00069f380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc000242be0, {0x144d138, 0xc0001cea80}, 0xc0003d3680, {0xc000570480?, 0xc000029c00?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc00069f5d8 sp=0xc00069f3a8 pc=0x7a09a5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000568600?, {0x144d138, 0xc0001cea80}, 0xc000636cf0?, 0xc000330900?, 0xc00069f788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc00069f658 sp=0xc00069f5d8 pc=0x748e8f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0001cea80, 0xa43a9b?, 0xc0001cea80?, 0x144d138?, 0xc0001cea80?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc00069f848 sp=0xc00069f658 pc=0xa46d59
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc0001cea80?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc00069f888 sp=0xc00069f848 pc=0xa469d2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0001cea80, 0x109, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc00069fc78 sp=0xc00069f888 pc=0x9260d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0001cea80, 0xc0001941c8?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc00069fcd8 sp=0xc00069fc78 pc=0x92730a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0xc000552000?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00069fd38 sp=0xc00069fcd8 pc=0x926fe5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0001c3e10?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc00069fe30 sp=0xc00069fd38 pc=0x926d50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000570000?, 0xc0001cea80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc00069ff60 sp=0xc00069fe30 pc=0x91af9e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0001cea80, 0xf)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc00069ffc0 sp=0xc00069ff60 pc=0x919a1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc00069ffe0 sp=0xc00069ffc0 pc=0x9248ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00069ffe8 sp=0xc00069ffe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef