Can anyone identify a patch to apply to existing kernels to fix this? Are there any released 3.8+ versions that are not vulnerable? The "mitigations" section

Can anyone identify a patch to apply to existing kernels to fix this? Are there any released 3.8+ versions that are not vulnerable? The "mitigations" section at the end is not forthcoming about this. Vulnerable systems remain vulnerable without such information. This does not seem to be a responsible disclosure of the vulnerability (keep in mind it was posted on their blog 5 days ago).