Commit d46c266a authored Jun 19, 2015 by Ralf Baechle Committed by Sasha Levin Jul 05, 2015

NET: ROSE: Don't dereference NULL neighbour pointer.



[ Upstream commit d496f7842aada20c61e6044b3395383fa972872c ]

A ROSE socket doesn't necessarily always have a neighbour pointer so check
if the neighbour pointer is valid before dereferencing it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Cc: stable@vger.kernel.org #2.6.11+
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent c44ed568

net/rose/af_rose.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -192,6 +192,7 @@ static void rose_kill_by_device(struct net_device *dev)

		if (rose->device == dev) {
		rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0);
		if (rose->neighbour)
		rose->neighbour->use--;
		rose->device = NULL;
		}