Commit bf39b424 authored by Sasha Levin's avatar Sasha Levin Committed by David S. Miller
Browse files

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: default avatarSasha Levin <sasha.levin@oracle.com>
Signed-off-by: default avatarDavid 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",