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

goroutine 2898309 [running]:
panic({0x106e9a0, 0xc0081a5080})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc008d49380 sp=0xc008d492c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc002756c00?, 0x11bd180, 0x10baf40)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc008d493a8 sp=0xc008d49380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc000526000, {0x1450ad8, 0xc009978a80}, 0xc009a54000, {0xc0000e7d00?, 0xc0021681e0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc008d495d8 sp=0xc008d493a8 pc=0x7a0fe5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0000e6480?, {0x1450ad8, 0xc009978a80}, 0xc00012f5f0?, 0xc005567d00?, 0xc008d49788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc008d49658 sp=0xc008d495d8 pc=0x7494cf
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc009978a80, 0xa47088?, 0xc009978a80?, 0xde1bff88?, 0x0?, 0x400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc008d49848 sp=0xc008d49658 pc=0xa47fd9
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc009978a80?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000080}, {0x400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc008d49888 sp=0xc008d49848 pc=0xa47c52
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc009978a80, 0x109, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000080}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc008d49c78 sp=0xc008d49888 pc=0x926d95
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc009978a80, 0x0?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000080}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc008d49cd8 sp=0xc008d49c78 pc=0x927fca
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0002a8900?, 0xc008d49e20?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000080}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc008d49d38 sp=0xc008d49cd8 pc=0x927ca5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000b66210?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc008d49e30 sp=0xc008d49d38 pc=0x927a10
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009542e00?, 0xc009978a80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc008d49f60 sp=0xc008d49e30 pc=0x91bc5e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc009978a80, 0xcf57)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc008d49fc0 sp=0xc008d49f60 pc=0x91a6dc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc008d49fe0 sp=0xc008d49fc0 pc=0x92558a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc008d49fe8 sp=0xc008d49fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef