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Commit bf39b424 authored Mar 29, 2014 by Sasha Levin Committed by David S. Miller Mar 31, 2014

rds: prevent dereference of a NULL device in rds_iw_laddr_check



Binding might result in a NULL device which is later dereferenced
without checking.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 2d3b479d

net/rds/iw.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -239,7 +239,8 @@ static int rds_iw_laddr_check(__be32 addr)
		ret = rdma_bind_addr(cm_id, (struct sockaddr *)&sin);
		/* due to this, we will claim to support IB devices unless we
		check node_type. */
		if (ret \|\| cm_id->device->node_type != RDMA_NODE_RNIC)
		if (ret \|\| !cm_id->device \|\|
		cm_id->device->node_type != RDMA_NODE_RNIC)
		ret = -EADDRNOTAVAIL;

		rdsdebug("addr %pI4 ret %d node type %d\n",