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Re: CVE request - kernel: ip6_dst_lookup_tail() NULL pointer dereference


From: Eugene Teo <eugene () redhat com>
Date: Thu, 04 Mar 2010 10:54:12 +0800

On 02/11/2010 01:08 PM, Eugene Teo wrote:
ipv6: Fix OOPS in ip6_dst_lookup_tail().

This fixes kernel bugzilla 11469: "TUN with 1024 neighbours:
ip6_dst_lookup_tail NULL crash"

dst->neighbour is not necessarily hooked up at this point in the
processing path, so blindly dereferencing it is the wrong thing to do.
This NULL check exists in other similar paths and this case was just an
oversight.

Steve, can you please assign a CVE name for this?

Thanks, Eugene
--
Eugene Teo / Red Hat Security Response Team


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