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SubjectRe: [REVIEW][PATCH 1/6] vfs: Don't allow changing the link count of an inode with an invalid uid or gid
On Wed, May 23, 2018 at 06:25:33PM -0500, Eric W. Biederman wrote:
> Changing the link count of an inode via unlink or link will cause a
> write back of that inode. If the uids or gids are invalid (aka not known
> to the kernel) writing the inode back may change the uid or gid in the
> filesystem. To prevent possible filesystem and to avoid the need for
> filesystem maintainers to worry about it don't allow operations on
> inodes with an invalid uid or gid.
> Signed-off-by: "Eric W. Biederman" <>

Acked-by: Seth Forshee <>

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