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Date: Wed, 24 Jul 2013 00:48:02 +0530 (IST)
From: P J P <>
To: oss security list <>
Subject: CVE Request: Linux kernel: panic while pushing pending data out of
 an IPv6 socket with UDP_CORK enabled.


Linux kernel built with IPv6 networking is vulnerable to a crash while sending 
data as a single datagram over IPv6 socket when UDP_CORK option set. UDP_CORK 
enables accumulating data and sending it as a single datagram.

Upstream fix:


Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.

Thank you!
Prasad J Pandit / Red Hat Security Response Team
DB7A 84C5 D3F9 7CD1 B5EB  C939 D048 7860 3655 602B

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