Commit c8cdd923 authored Feb 21, 2017 by Steve Wise Committed by Greg Kroah-Hartman Mar 12, 2017

rdma_cm: fail iwarp accepts w/o connection params



commit f2625f7db4dd0bbd16a9c7d2950e7621f9aa57ad upstream.

cma_accept_iw() needs to return an error if conn_params is NULL.
Since this is coming from user space, we can crash.

Reported-by: Shaobo He <shaobo@cs.utah.edu>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 50fc62d5

drivers/infiniband/core/cma.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -3540,6 +3540,9 @@ static int cma_accept_iw(struct rdma_id_private *id_priv,
		struct iw_cm_conn_param iw_param;
		int ret;

		if (!conn_param)
		return -EINVAL;

		ret = cma_modify_qp_rtr(id_priv, conn_param);
		if (ret)
		return ret;