The ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel before 2.6.37 does not initialize a certain response buffer, which allows local users to obtain potentially sensitive information from kernel memory via vectors that cause this buffer to be only partially filled, a different vulnerability than CVE-2010-4649.
https://exchange.xforce.ibmcloud.com/vulnerabilities/65563
https://bugzilla.redhat.com/show_bug.cgi?id=667916
http://www.securityfocus.com/bid/46488