[prev in list] [next in list] [prev in thread] [next in thread] 

List:       oss-security
Subject:    Re: [oss-security] CVE request: Linux kernel: panic while appending data to a corked IPv6 socket in
From:       P J P <ppandit () redhat ! com>
Date:       2013-07-23 20:27:26
Message-ID: alpine.LFD.2.03.1307240138510.6898 () erqung ! pbz
[Download RAW message or body]

+-- On Tue, 23 Jul 2013, Seth Arnold wrote --+
| UDP_CORKED? I don't see this string in my /usr/include/ or recent Linux git 
| tree. 
| Am I missing something?

  It's one of those non-portable Linux socket options.

===
$ man 7 udp 
 ...
 UDP_CORK (since Linux 2.5.44)
              If  this  option is enabled, then all data output on this socket
              is accumulated into a single datagram that is  transmitted  when
              the  option is disabled.  This option should not be used in code
              intended to be portable.
===

Though the crash is more of due to IPV6_MTU value set. (from commit log)

--
Prasad J Pandit / Red Hat Security Response Team
DB7A 84C5 D3F9 7CD1 B5EB  C939 D048 7860 3655 602B
[prev in list] [next in list] [prev in thread] [next in thread]