Re: [PATCH] hugetlbfs: fix error handling in init_hugetlbfs_fs()

[Andrew Morton]

On Tue, 29 Oct 2019 13:47:38 -0700 Mike Kravetz <mike.kravetz@xxxxxxxxxx> wrote:

> It is assumed that the hugetlbfs_vfsmount[] array will contain
> either a valid vfsmount pointer or NULL for each hstate after
> initialization.  Changes made while converting to use fs_context
> broke this assumption.
> 
> While fixing the hugetlbfs_vfsmount issue, it was discovered that
> init_hugetlbfs_fs never did correctly clean up when encountering
> a vfs mount error.

What were the user-visible runtime effects of this bug?

(IOW: why does it warrant the cc:stable?)