From: Aleksa Sarai
Sent: 25 July 2023 17:36
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We almost certainly want to support AT_EMPTY_PATH at the same time. Otherwise userspace will still need to go through /proc when trying to chmod a file handle they have.
That can't be allowed. Just because a process has a file open and write access to the directory that contains it doesn't mean they are allowed to change the file permissions. They also need directory search access from a directory they have open through to the containing directory. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
