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

goroutine 609871 [running]:
panic({0xb6a340, 0x4008fef8f0})
	GOROOT/src/runtime/panic.go:987 +0x3d8 fp=0x4005cb1340 sp=0x4005cb1280 pc=0x46bb8
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xf96a75?, 0xcb7500, 0xbb6260)
	GOROOT/src/runtime/iface.go:272 +0x74 fp=0x4005cb1370 sp=0x4005cb1340 pc=0x1a174
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0x4000334000, {0xf64bf8, 0x4004e1f500}, 0x4001b15b00, {0x4006cd3e00?, 0x40044c0410?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x604 fp=0x4005cb15a0 sp=0x4005cb1370 pc=0x37fc84
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0x4004e1f500?, {0xf64bf8, 0x4004e1f500}, 0x3af30c?, 0x4005cb16f8?, 0x4005cb1708)
	pkg/sentry/vfs/vfs.go:296 +0x168 fp=0x4005cb1620 sp=0x4005cb15a0 pc=0x32b5b8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0x4004e1f500, 0x20?, 0x0?, 0xc032c2d8?, 0x4005cb1848?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x278 fp=0x4005cb1810 sp=0x4005cb1620 pc=0x5dea38
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0x4004e1f500?, {{0xffffffffffffff9c}, {0x20000140}, {0x3}, {0x200001c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x30 fp=0x4005cb1850 sp=0x4005cb1810 pc=0x5de790
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4004e1f500, 0x25, {{0xffffffffffffff9c}, {0x20000140}, {0x3}, {0x200001c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x578 fp=0x4005cb1c40 sp=0x4005cb1850 pc=0x4ddc78
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4004e1f500, 0x0?, {{0xffffffffffffff9c}, {0x20000140}, {0x3}, {0x200001c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x40 fp=0x4005cb1ca0 sp=0x4005cb1c40 pc=0x4deb90
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x17d7842?, 0x1d4cd840?, {{0xffffffffffffff9c}, {0x20000140}, {0x3}, {0x200001c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x5c fp=0x4005cb1d00 sp=0x4005cb1ca0 pc=0x4de89c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x40008a0410?)
	pkg/sentry/kernel/task_syscall.go:257 +0x298 fp=0x4005cb1e00 sp=0x4005cb1d00 pc=0x4de648
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4006cd3d80?, 0x4004e1f500)
	pkg/sentry/kernel/task_run.go:259 +0xd10 fp=0x4005cb1f40 sp=0x4005cb1e00 pc=0x4d3c30
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4004e1f500, 0x9955)
	pkg/sentry/kernel/task_run.go:94 +0x1a8 fp=0x4005cb1fb0 sp=0x4005cb1f40 pc=0x4d2948
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2c fp=0x4005cb1fd0 sp=0x4005cb1fb0 pc=0x4dc72c
runtime.goexit()
	src/runtime/asm_arm64.s:1172 +0x4 fp=0x4005cb1fd0 sp=0x4005cb1fd0 pc=0x7b5a4
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xe8