Messages in this thread | | | Date | Wed, 03 Apr 2013 10:58:37 -0700 | From | Andy Lutomirski <> | Subject | Re: [ 105/124] af_unix: dont send SCM_CREDENTIAL when dest socket is NULL |
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On 04/03/2013 08:35 AM, Eric Dumazet wrote: > On Wed, 2013-04-03 at 17:10 +0200, Sven Joachim wrote: >> On 2013-04-03 16:00 +0200, Eric Dumazet wrote: > >> >>> It might be a wrong sender (application bug or bad identity), and udevd >>> correctly discards the incoming message. >> >> How would I find out the culprit? > > Change udevd to display the pid as well, and hopefully track the sender. > > udevd receives uid and pid in the credentials.
This sounds suspiciously like an SCM_CREDENTIALS bug triggered by a race. There's a fix (that needs both a new version from me and a review by someone) here:
http://www.spinics.net/lists/netdev/msg229948.html
--Andy
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