Re: [PATCH 1/2] Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL"

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From: ebiederm@xxxxxxxxxxxx (Eric W. Biederman)
Date: Wed, 03 Apr 2013 19:13:35 -0700

> 
> This reverts commit 14134f6584212d585b310ce95428014b653dfaf6.
> 
> The problem that the above patch was meant to address is that af_unix
> messages are not being coallesced because we are sending unnecesarry
> credentials.  Not sending credentials in maybe_add_creds totally
> breaks unconnected unix domain sockets that wish to send credentails
> to other sockets.
> 
> In practice this break some versions of udev because they receive a
> message and the sending uid is bogus so they drop the message.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Sven Joachim <svenjoac@xxxxxx>
> Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>

Applied.
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