commit 80c4cecb703aedcc14c84bf81d11d18fa6433947
author Hannes Frederic Sowa <hannes@stressinduktion.org> Mon May 19 14:16:47 2014 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue May 20 03:15:21 2014 -0700
tree 8f12a207441eccd57ae5b0bfde7e8b1761dd7687
parent dab7ae09e8cad8711d286d56fea8b78609e62b16

ping: prevent NULL pointer dereference on write to msg_name

A plain read() on a socket does set msg->msg_name to NULL. So check for
NULL pointer first.

Change-Id: I3773934fb633157ce5011d2f10900b7caef73733
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: cf970c002d270c36202bd5b9c2804d3097a52da0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Avijit Kanti Das <avijitnsec@codeaurora.org>