| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 117/153] rdma_cm: fail iwarp accepts w/o connection params | Date | Fri, 10 Mar 2017 10:09:10 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Steve Wise <swise@opengridcomputing.com>
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>
--- drivers/infiniband/core/cma.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -3540,6 +3540,9 @@ static int cma_accept_iw(struct rdma_id_ 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;
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