Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation. NOTE: the affected code was moved to the skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.
https://exchange.xforce.ibmcloud.com/vulnerabilities/91922
https://bugzilla.redhat.com/show_bug.cgi?id=1079012
http://www.ubuntu.com/usn/USN-2240-1
http://www.securityfocus.com/bid/66348