RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag

[Jack Lloyd]

On Thu, Mar 06, 2008 at 07:13:20PM +0100, Paolo Bonzini wrote:
> A process can send a signal via kill.  IOW, a malicious process can 
> *control when the process would be interrupted* in order to get it into 
> the signal handler with DF=1.

If the malicious process can send a signal to another process, it
could also ptrace() it. Which is more useful, if you wanted to be
malicious?

Jack