From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Paris <eparis@redhat.com>
Subject: Re: Is zero a valid value for the pid member of the
	AUDIT_SIGNAL_INFO message?
Date: Tue, 11 Mar 2014 21:06:44 -0400
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References: <20140311221517.GA15334@madcap2.tricolour.ca>
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To: Richard Guy Briggs <rgb@redhat.com>
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On Tue, 2014-03-11 at 18:15 -0400, Richard Guy Briggs wrote:
> Steve,
> 
> Subject says it all...
> 
> Is zero a valid value for the pid member of the AUDIT_SIGNAL_INFO message?

No...

Given that userspace requests AUDIT_SIGNAL_INFO after it gets a signal,
and that audit_sig_{uid,pid,...} get filled in when some task sent
auditd that signal, the idea that the pid would be 0 doesn't make
sense...  (unless auditd requests AUDIT_SIGNAL_INFO without getting a
signal, but that's just dumb)