oss-sec mailing list archives
Re: CVE-2009-4272 kernel: emergency route cache flushing leads to node deadlock
From: Eugene Teo <eugeneteo () kernel sg>
Date: Wed, 20 Jan 2010 17:01:40 +0800
On 01/20/2010 10:37 AM, Eugene Teo wrote:
Reported by the Parallels Virtuozzo Containers team. If an attacker was able to cause a large enough number of collisions in the routing hash table (via specially-crafted packets) for the emergency route flush to trigger, a deadlock could occur, or if the kernel routing cache was disabled, an uninitialized pointer would be left behind after a route lookup, leading to a NULL pointer dereference. Both caused by the same issue. Introduced via: c6153b5b77650879d78dec76414213c76dd8d574 v2.6.27-rc4~39^2~41 1080d709fb9d8cd4392f93476ee46a9d6ea05a5b v2.6.29-rc1~581^2~973 Patches: https://bugzilla.redhat.com/show_bug.cgi?id=545411#c6
^^ http://git.kernel.org/linus/73e42897 http://git.kernel.org/linus/b6280b47
https://bugzilla.redhat.com/show_bug.cgi?id=545411#c15
I have also fixed the permissions of the file attachments. Thanks, Eugene
Current thread:
- CVE-2009-4272 kernel: emergency route cache flushing leads to node deadlock Eugene Teo (Jan 19)
- Re: CVE-2009-4272 kernel: emergency route cache flushing leads to node deadlock Eugene Teo (Jan 20)