CVE-2014-7841 Linux kernel: net: sctp: NULL pointer dereference in af->from_addr_param on malformed packet

[Petr Matousek <pmatouse () redhat com>]

An SCTP server doing ASCONF will panic on malformed INIT ping-of-death
in the form of:

 ------------ INIT[PARAM: SET_PRIMARY_IP] ------------>

A remote attacker could use this flaw to crash the system by sending a
maliciously prepared SCTP packet in order to trigger a NULL pointer
dereference on the server.

Upstream patch:
https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=e40607cbe270a9e8360907cb1e62ddf0736e4864

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1163087

-- 
Petr Matousek / Red Hat Product Security
PGP: 0xC44977CA 8107 AF16 A416 F9AF 18F3  D874 3E78 6F42 C449 77CA