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

goroutine 79 [running]:
panic({0xc51560, 0x4000ad0510})
	GOROOT/src/runtime/panic.go:987 +0x3ac fp=0x40006f9460 sp=0x40006f93a0 pc=0x450ac
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xffff4db8d5e0?, 0xd9ea00, 0xc9a9a0)
	GOROOT/src/runtime/iface.go:272 +0x70 fp=0x40006f9490 sp=0x40006f9460 pc=0x1a200
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).MkdirAt(0x4000480c80, {0x1034760, 0x400065c000}, 0x40008cc480, {0x9708?, 0x6f?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:412 +0x648 fp=0x40006f96c0 sp=0x40006f9490 pc=0x3d6c58
gvisor.dev/gvisor/pkg/sentry/fsimpl/devpts.(*filesystem).MkdirAt(0x400011c900?, {0x1034760?, 0x400065c000?}, 0x40008cc480?, {0x9400?, 0x72?})
	<autogenerated>:1 +0x30 fp=0x40006f9700 sp=0x40006f96c0 pc=0x942740
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MkdirAt(0x400047fe80?, {0x1034760, 0x400065c000}, 0x0?, 0x40006f98c8?, 0x40006f97b4)
	pkg/sentry/vfs/vfs.go:367 +0x184 fp=0x40006f9760 sp=0x40006f9700 pc=0x36c414
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.mkdirat(0x400065c000, 0x4?, 0x4000650100?, 0x1ff)
	pkg/sentry/syscalls/linux/sys_file.go:947 +0x1c4 fp=0x40006f98a0 sp=0x40006f9760 pc=0x6af274
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Mkdirat(0x400065c000?, 0x0?, {{0xffffffffffffff9c}, {0xfa10d9ca85e0}, {0x1ff}, {0xf4451e017654}, {0xf4451dfc18e0}, {0xf4451dfc18e0}})
	pkg/sentry/syscalls/linux/sys_file.go:934 +0x50 fp=0x40006f98d0 sp=0x40006f98a0 pc=0x6af070
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x400065c000, 0x22, {{0xffffffffffffff9c}, {0xfa10d9ca85e0}, {0x1ff}, {0xf4451e017654}, {0xf4451dfc18e0}, {0xf4451dfc18e0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x678 fp=0x40006f9c10 sp=0x40006f98d0 pc=0x56d2d8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x400065c000, 0x0?, {{0xffffffffffffff9c}, {0xfa10d9ca85e0}, {0x1ff}, {0xf4451e017654}, {0xf4451dfc18e0}, {0xf4451dfc18e0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x48 fp=0x40006f9c70 sp=0x40006f9c10 pc=0x56e5b8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x40006f97c0?, 0x4000884000?, {{0xffffffffffffff9c}, {0xfa10d9ca85e0}, {0x1ff}, {0xf4451e017654}, {0xf4451dfc18e0}, {0xf4451dfc18e0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x7c fp=0x40006f9cd0 sp=0x40006f9c70 pc=0x56e1bc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000927930?)
	pkg/sentry/kernel/task_syscall.go:257 +0x330 fp=0x40006f9dd0 sp=0x40006f9cd0 pc=0x56dee0
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x400070f780?, 0x400065c000)
	pkg/sentry/kernel/task_run.go:269 +0x116c fp=0x40006f9f20 sp=0x40006f9dd0 pc=0x56105c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x400065c000, 0x13)
	pkg/sentry/kernel/task_run.go:98 +0x250 fp=0x40006f9fb0 sp=0x40006f9f20 pc=0x55f850
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:390 +0x2c fp=0x40006f9fd0 sp=0x40006f9fb0 pc=0x56ba0c
runtime.goexit()
	src/runtime/asm_arm64.s:1172 +0x4 fp=0x40006f9fd0 sp=0x40006f9fd0 pc=0x7a444
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:390 +0xf8