Re: [PATCH v4 10/21] fs: Check for invalid i_uid in may_follow_link()

2016-05-24 Thread Djalal Harouni
On Tue, Apr 26, 2016 at 02:36:23PM -0500, Seth Forshee wrote: > Filesystem uids which don't map into a user namespace may result > in inode->i_uid being INVALID_UID. A symlink and its parent > could have different owners in the filesystem can both get > mapped to INVALID_UID, which may result in fo

[PATCH v4 10/21] fs: Check for invalid i_uid in may_follow_link()

2016-04-26 Thread Seth Forshee
Filesystem uids which don't map into a user namespace may result in inode->i_uid being INVALID_UID. A symlink and its parent could have different owners in the filesystem can both get mapped to INVALID_UID, which may result in following a symlink when this would not have otherwise been permitted wh