prelink should not mess with running executables

[Garrett Holmstrom]

On 2012-07-15 15:00, Sam Varshavchik wrote:
> Benny Amorsen writes:
>> Perhaps it's just me, but why would the daemon stat /proc/self/exe? I
>> presume prelink writes a new file and renames into place as a proper
>> Unix program should, which still leaves the original program intact on
>> disk until the last open file descriptor referring to it is gone.
>
> A means for authenticating a filesystem domain socket's peer. Receive
> the peer's credentials, then check /proc/pid/exe and /proc/self/exe. If
> they're same, the daemon is talking to another instance of itself.

Admittedly without knowledge of what daemon you are referring to, how is 
the file name alone sufficient to be able to determine that something 
is, indeed, the same program?  My security-sense seems to be tingling.  ;-)