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

goroutine 4337442 [running]:
panic({0x106d860, 0xc000ec8c90})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0005b5380 sp=0xc0005b52c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00202f200?, 0x11bc000, 0x10b9e00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0005b53a8 sp=0xc0005b5380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0004d4000, {0x144f858, 0xc007954000}, 0xc00014e480, {0xc0003a5400?, 0xc00692fdb0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0005b55d8 sp=0xc0005b53a8 pc=0x7a0fe5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0003a4100?, {0x144f858, 0xc007954000}, 0xc0055375f0?, 0xc009598500?, 0xc0005b5788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc0005b5658 sp=0xc0005b55d8 pc=0x7494cf
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc007954000, 0x7954000?, 0xc00203e140?, 0xc8bd3f88?, 0x0?, 0x400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc0005b5848 sp=0xc0005b5658 pc=0xa478b9
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc007954000?, {{0xffffffffffffff9c}, {0x20000100}, {0x5}, {0x20000040}, {0x400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc0005b5888 sp=0xc0005b5848 pc=0xa47532
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc007954000, 0x109, {{0xffffffffffffff9c}, {0x20000100}, {0x5}, {0x20000040}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc0005b5c78 sp=0xc0005b5888 pc=0x926ad5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc007954000, 0x0?, {{0xffffffffffffff9c}, {0x20000100}, {0x5}, {0x20000040}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc0005b5cd8 sp=0xc0005b5c78 pc=0x927d0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0001e2000?, 0xc0005b5e20?, {{0xffffffffffffff9c}, {0x20000100}, {0x5}, {0x20000040}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc0005b5d38 sp=0xc0005b5cd8 pc=0x9279e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006ca6a50?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc0005b5e30 sp=0xc0005b5d38 pc=0x927750
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00a5e8600?, 0xc007954000)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc0005b5f60 sp=0xc0005b5e30 pc=0x91b99e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc007954000, 0xa505)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc0005b5fc0 sp=0xc0005b5f60 pc=0x91a41c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0005b5fe0 sp=0xc0005b5fc0 pc=0x9252ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0005b5fe8 sp=0xc0005b5fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef