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

goroutine 1286139 [running]:
panic({0x10d0b60, 0xc0009c4600})
	GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc002f87350 sp=0xc002f87290 pc=0x436c1b
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x7f23c609f0c0?, 0x1222920, 0x111d880)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc002f87378 sp=0xc002f87350 pc=0x40b45c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0006000a0, {0x1496f38, 0xc005c87500}, 0xc0002d2d80, {0xc00042b400?, 0xc000bcb040?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x84a fp=0xc002f875a0 sp=0xc002f87378 pc=0x7ad50a
gvisor.dev/gvisor/pkg/sentry/fsimpl/sys.(*filesystem).LinkAt(0xc0001e84d0?, {0x1496f38?, 0xc005c87500?}, 0xc005c87500?, {0xc00042b400?, 0xc000bcb040?})
	<autogenerated>:1 +0x38 fp=0xc002f875e0 sp=0xc002f875a0 pc=0xd49918
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0005a2100?, {0x1496f38, 0xc005c87500}, 0xc008ae90e0?, 0xc006a3aa00?, 0xc002f87790)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc002f87660 sp=0xc002f875e0 pc=0x754f0f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc005c87500, 0x5c87500?, 0xc005c87500?, 0x6b157f8c?, 0x3?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x371 fp=0xc002f87850 sp=0xc002f87660 pc=0xa706f1
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc005c87500?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x200000c0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc002f87890 sp=0xc002f87850 pc=0xa70352
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005c87500, 0x109, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x200000c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc002f87c80 sp=0xc002f87890 pc=0x9404f5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005c87500, 0x85?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x200000c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc002f87ce0 sp=0xc002f87c80 pc=0x94172a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x415ef0?, 0x861c4737?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x200000c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc002f87d40 sp=0xc002f87ce0 pc=0x941405
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000173860?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc002f87e38 sp=0xc002f87d40 pc=0x941170
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc007b16780?, 0xc005c87500)
	pkg/sentry/kernel/task_run.go:259 +0xf0c fp=0xc002f87f60 sp=0xc002f87e38 pc=0x9353cc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005c87500, 0x3985)
	pkg/sentry/kernel/task_run.go:94 +0x1b8 fp=0xc002f87fc0 sp=0xc002f87f60 pc=0x933e98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc002f87fe0 sp=0xc002f87fc0 pc=0x93ecea
runtime.goexit()
	src/runtime/asm_amd64.s:1598 +0x1 fp=0xc002f87fe8 sp=0xc002f87fe0 pc=0x46d5e1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef