Re: core statement on fexecve, O_EXEC, and O_SEARCH

[David Holland <dholland-tech%netbsd.org@localhost>]

On Wed, Dec 05, 2012 at 08:39:55AM -0500, Thor Lancelot Simon wrote:
 > I also think we need to check, for all the fch*, fexec* syscalls:
 > 
 >      * permissions both retained from the file's open and at the time
 >        of use

I don't think this is necessary, any more than it is for read and
write permissions.

 >      * whether the name in question still refers to the file in question

I don't see the point of this.

 >      * whether the name in question is within the process' current root
 >        (forbidding fchdir and fchroot otherwise).

Definitely.

-- 
David A. Holland
dholland%netbsd.org@localhost