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(parent: 7a9b8e6) | patch
ping: prevent NULL pointer dereference on write to msg_name
authorHannes Frederic Sowa <hannes@stressinduktion.org>
Mon, 18 Nov 2013 06:07:45 +0000 (07:07 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 8 Dec 2013 15:29:13 +0000 (07:29 -0800)
commit086663e065ba2383382d6bb7d8a3d9bc9cba7cdf
tree6a717d4327d9161c0fd447d8b9d2102ec4626efdtree | snapshot
parent7a9b8e64a5706d62d5a5ab54fe3d0320845b1d4acommit | diff
ping: prevent NULL pointer dereference on write to msg_name

[ Upstream commit cf970c002d270c36202bd5b9c2804d3097a52da0 ]

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

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv4/ping.c diff | blob | history
Domain: System / Uncategorized;