kernel is vulnerable to denial of service attack.It occur if packets were received while the ipip or ip_gre module was being loaded.
ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978
www.openwall.com/lists/oss-security/2011/05/05/6
access.redhat.com/errata/RHSA-2011:1253
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=702303
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/2.0/html/Technical_Notes/index.html
github.com/torvalds/linux/commit/d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978