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

goroutine 2713314 [running]:
panic({0x31f420, 0xc003d3e1b0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc005db2e90 sp=0xc005db2dd0 pc=0x124c67a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc005934cc8?, 0x474240, 0x36c7a0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc005db2eb8 sp=0xc005db2e90 pc=0x121fb5c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00035e1e0, {0x835a98, 0xc004c0a000}, 0xc001990000, {0xc00022e480?, 0xc0067dfc00?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc005db3118 sp=0xc005db2eb8 pc=0x182adce
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*filesystem).LinkAt(0xc00035e1e0, {0x835a98, 0xc004c0a000}, 0x1286685?, {0xc00022e480?, 0xc0067dfc00?})
	<autogenerated>:1 +0x8a fp=0xc005db3180 sp=0xc005db3118 pc=0x1dc986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc004c0a8a0?, {0x835a98, 0xc004c0a000}, 0xc005934c60?, 0xc007994c00?, 0xc005db33f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc005db3230 sp=0xc005db3180 pc=0x178fb3d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc004c0a000, 0x1286685?, 0x1446b72?, 0x1286657?, 0x101aacd38?, 0x1000)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc005db34a8 sp=0xc005db3230 pc=0x1c9538c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc004c0a000?, {{0x4}, {0x200000c0}, {0x5}, {0x20000100}, {0x1000}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc005db3500 sp=0xc005db34a8 pc=0x1c94fa8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004c0a000, 0x109, {{0x4}, {0x200000c0}, {0x5}, {0x20000100}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc005db39e0 sp=0xc005db3500 pc=0x1aad659
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004c0a000, 0x0?, {{0x4}, {0x200000c0}, {0x5}, {0x20000100}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc005db3a78 sp=0xc005db39e0 pc=0x1aaf43d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc005be1930?, 0xc004face10?, {{0x4}, {0x200000c0}, {0x5}, {0x20000100}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc005db3af0 sp=0xc005db3a78 pc=0x1aaedef
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004c0a000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc005db3c18 sp=0xc005db3af0 pc=0x1aae985
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004c0a000?, 0xc004c0a000)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc005db3ec8 sp=0xc005db3c18 pc=0x1a99456
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004c0a000, 0xba49)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc005db3fb0 sp=0xc005db3ec8 pc=0x1a96f3b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc005db3fe0 sp=0xc005db3fb0 pc=0x1aab148
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc005db3fe8 sp=0xc005db3fe0 pc=0x1283701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad