Restricting path name lookup with openat2()

Posted Aug 26, 2019 11:26 UTC (Mon) by scientes (guest, #83068)
In reply to: Restricting path name lookup with openat2() by brauner
Parent article: Restricting path name lookup with openat2()

> The flag argument would usually have been placed in a register making the syscall hard to extend once we're out of flags.

Ummmm, you can just use the last flag as a "look in this other register for more flags", kind of the way fnctl works.......