On 08/09/2020 20:50, Al Viro wrote: > 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)? > I don't understand your question. AT_INTERPRETED can and should be used with AT_EMPTY_PATH. The two checks I wrote about was for IMA.