Kernel: net: leakage of uninitialized memory to user-space via recv syscalls

The pnrecvmsg function in net/phonet/datagram.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a 1 recvfrom, 2 recvmmsg, ...

CVE-2013-7264

The l2tpiprecvmsg function in net/l2tp/l2tpip.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a 1 recvfrom, 2 recvmmsg, ...