Yea I find it fascinating too that the code you wrote that introduced the bug was also fixed by you with a commit message missing the original details about chmod from the bug reporter (available here: http://lkml.org/lkml/2010/1/20/168) and mentioning "Resulting in overly restrictive permissions on sysfs files" yet apparently with the knowledge that it was a security issue wasn't picked up by a non-security person as a security issue.
Same goes for all those sysctl vulnerabilities you claimed before that weren't fixed by anything but your sysctl rewrite. I mean, those vulnerabilities should be utterly obvious to any backporter!