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

goroutine 277 [running]:
panic({0x31eb20, 0xc0001fb080})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000908e90 sp=0xc000908dd0 pc=0x12475fa
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00044aba8?, 0x473500, 0x36bd80)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc000908eb8 sp=0xc000908e90 pc=0x121aadc
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00037cb40, {0x833c78, 0xc000a5e000}, 0xc00023c900, {0xc000231b80?, 0xc0006900f0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc000909118 sp=0xc000908eb8 pc=0x182524e
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*filesystem).LinkAt(0xc00037cb40, {0x833c78, 0xc000a5e000}, 0x1281605?, {0xc000231b80?, 0xc0006900f0?})
	<autogenerated>:1 +0x8a fp=0xc000909180 sp=0xc000909118 pc=0x1dc0a0a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000a5e8a0?, {0x833c78, 0xc000a5e000}, 0xc00044ab40?, 0xc00020ef00?, 0xc0009093f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc000909230 sp=0xc000909180 pc=0x1789fbd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc000a5e000, 0x1281605?, 0x14414d2?, 0x12815d7?, 0x101aa6678?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc0009094a8 sp=0xc000909230 pc=0x1c8d68c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc000909540?, {{0x3}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x65732f636f72702f}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc000909500 sp=0xc0009094a8 pc=0x1c8d2a8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a5e000, 0x109, {{0x3}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x65732f636f72702f}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc0009099e0 sp=0xc000909500 pc=0x1aa6f99
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a5e000, 0x0?, {{0x3}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x65732f636f72702f}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc000909a78 sp=0xc0009099e0 pc=0x1aa8d7d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000a25c70?, 0xc000a46000?, {{0x3}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x65732f636f72702f}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc000909af0 sp=0xc000909a78 pc=0x1aa872f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000a5e000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc000909c18 sp=0xc000909af0 pc=0x1aa82c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a5e000?, 0xc000a5e000)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc000909ec8 sp=0xc000909c18 pc=0x1a92d96
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a5e000, 0xd)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc000909fb0 sp=0xc000909ec8 pc=0x1a9087b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc000909fe0 sp=0xc000909fb0 pc=0x1aa4a88
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000909fe8 sp=0xc000909fe0 pc=0x127e681
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad