Date: Thu, 17 Sep 2009 15:03:40 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: "Steven M. Christey" <coley@...us.mitre.org>, Willy Tarreau <w@....eu> Subject: Re: CVE-2009-2903 kernel: appletalk: denial of service when handling IP tunnelled over DDP datagrams Eugene Teo wrote: > Eugene Teo wrote: >> The check for the ipddpN device in the handle_ip_over_ddp() function >> returns -NODEV to the atalk_rcv() function when the device does not >> exist. The atalk_rcv() function then directly returns that value to >> its caller. There is a missing call to kfree_skb() in these unaccepted >> IP-DDP datagram that can exhaust the kernel memory eventually. It >> affects Linux hosts with appletalk and ipddp modules loaded, that are >> attached to the same link. Thanks to Mark Smith for reporting this >> issue to us. > > Some updates and a quick analysis at: > https://bugzilla.redhat.com/CVE-2009-2903#c0 and > http://kbase.redhat.com/faq/docs/DOC-19069 Should be http://kbase.redhat.com/faq/docs/DOC-19077. Thanks, Eugene
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