[PATCH] Error checking for SETXID (bug 13347)

[Florian Weimer]

On 03/24/2014 03:30 PM, Florian Weimer wrote:
> Check for syscall error in the SETXID implementation in NPTL (bug 13347).
>
> At this point, we can only abort the process because we have already
> switched credentials on other threads.  Returning an error would still
> leave the process in an inconsistent state.
>
> The new xtest needs root privileges to run.

It turns out that the patch is wrong/incomplete.  The abort needs to be 
restricted to cases where we actually see inconsistent failure/success 
behavior.  I will work on a fix.

-- 
Florian Weimer / Red Hat Product Security Team