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rdma_cm: fail iwarp accepts w/o connection params

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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>
This commit is contained in:
Steve Wise 2017-02-21 11:21:57 -08:00 • committed by Greg Kroah-Hartman
parent 88326fe95f
commit 44dd30e04c
1 changed files with 3 additions and 0 deletions
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3
drivers/infiniband/core/cma.c
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@ -3349,6 +3349,9 @@ 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;