Fix for SQL Server 2012 SP2 Data Corruption Issue Now Available
Microsoft recently announced service pack (SP) 2 for SQL Server 2012. However, we were aware of a potential data corruption issue related to online index rebuilds, so we had been recommending that customers avoid installing it until the fix was available.
That hotfix is now available: http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2969896&kbln=en-us
Note that there is also a fix for SQL Server 2012 SP1 and for SQL Server 2014 RTM.
2014-06-30