Re: [RFC PATCH v8 0/3] Add support for AT_INTERPRETED (was O_MAYEXEC)
From: Al Viro <viro@zeniv.linux.org.uk>
Date: 2020-09-08 18:52:08
Also in:
linux-fsdevel, linux-integrity, linux-security-module, lkml
On Tue, Sep 08, 2020 at 09:59:53AM +0200, Mickaël Salaün wrote:
Hi, This height patch series rework the previous O_MAYEXEC series by not adding a new flag to openat2(2) but to faccessat2(2) instead. As suggested, this enables to perform the access check on a file descriptor instead of on a file path (while opening it). This may require two checks (one on open and then with faccessat2) but it is a more generic approach [8].
Again, why is that folded into lookup/open/whatnot, rather than being an operation applied to a file (e.g. O_PATH one)?