panic: Incrementing non-positive count 0xc0079ae000 on vfs.Filesystem

goroutine 492598 [running]:
panic(0x17f9e60, 0xc006d23420)
	GOROOT/src/runtime/panic.go:1064 +0x545 fp=0xc007904e80 sp=0xc007904db8 pc=0x439ae5
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).IncRef(0xc0079ae000)
	bazel-out/k8-fastbuild-ST-0995fa9490c1/bin/pkg/sentry/vfs/filesystem_refs.go:72 +0x18c fp=0xc007904ef8 sp=0xc007904e80 pc=0x95c28c
gvisor.dev/gvisor/pkg/sentry/kernel.(*CgroupRegistry).FindHierarchy(0xc00000e340, 0x245df40, 0x5, 0x5, 0x0)
	pkg/sentry/kernel/cgroup.go:175 +0x219 fp=0xc007905018 sp=0xc007904ef8 pc=0xd13bf9
gvisor.dev/gvisor/pkg/sentry/fsimpl/cgroupfs.FilesystemType.GetFilesystem(0x1be7c20, 0xc0049e2a80, 0xc0002e2908, 0xc0000236e0, 0xc008865600, 0x2, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/fsimpl/cgroupfs/cgroupfs.go:222 +0x726 fp=0xc007905248 sp=0xc007905018 pc=0x10cf0a6
gvisor.dev/gvisor/pkg/sentry/fsimpl/cgroupfs.(*FilesystemType).GetFilesystem(0x2ede278, 0x1be7c20, 0xc0049e2a80, 0xc0002e2908, 0xc0000236e0, 0xc008865600, 0x2, 0x0, 0x0, 0x0, ...)
	<autogenerated>:1 +0xe5 fp=0xc0079052e8 sp=0xc007905248 pc=0x10e3045
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002e2908, 0x1be7c20, 0xc0049e2a80, 0xc0000236e0, 0xc008865600, 0x2, 0xc008865500, 0x6, 0xc0079056a0, 0x0, ...)
	pkg/sentry/vfs/mount.go:200 +0x1a2 fp=0xc007905458 sp=0xc0079052e8 pc=0x962a82
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002e2908, 0x1be7c20, 0xc0049e2a80, 0xc0000236e0, 0xc008865600, 0x2, 0xc0079056d0, 0xc008865500, 0x6, 0xc0079056a0, ...)
	pkg/sentry/vfs/mount.go:273 +0xd5 fp=0xc007905530 sp=0xc007905458 pc=0x9632d5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Mount(0xc0049e2a80, 0x20000040, 0x20000080, 0x200000c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/mount.go:113 +0x4f4 fp=0xc007905730 sp=0xc007905530 pc=0x137bb74
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0049e2a80, 0xa5, 0x20000040, 0x20000080, 0x200000c0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x453 fp=0xc0079059d0 sp=0xc007905730 pc=0xd80453
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0049e2a80, 0xa5, 0x20000040, 0x20000080, 0x200000c0, 0x0, 0x0, 0x0, 0x408eb8, 0xc0049e3367)
	pkg/sentry/kernel/task_syscall.go:239 +0xba fp=0xc007905ab0 sp=0xc0079059d0 pc=0xd81bda
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0049e2a80, 0xa5, 0x20000040, 0x20000080, 0x200000c0, 0x0, 0x0, 0x0, 0x13fd86b, 0x2eddc96)
	pkg/sentry/kernel/task_syscall.go:199 +0x10f fp=0xc007905b60 sp=0xc007905ab0 pc=0xd814ef
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0049e2a80, 0x2, 0xc0049e2a80)
	pkg/sentry/kernel/task_syscall.go:174 +0x1ea fp=0xc007905ca0 sp=0xc007905b60 pc=0xd80c8a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0049e2a80, 0x1bb4ba0, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0x12a7 fp=0xc007905ed8 sp=0xc007905ca0 pc=0xd6c5c7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0049e2a80, 0x750f)
	pkg/sentry/kernel/task_run.go:97 +0x398 fp=0xc007905fd0 sp=0xc007905ed8 pc=0xd6a6f8
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc007905fd8 sp=0xc007905fd0 pc=0x475221
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:328 +0x1a5