This is a note to let you know that I've just added the patch titled
rdma_cm: fail iwarp accepts w/o connection params
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma_cm-fail-iwarp-accepts-w-o-connection-params.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f2625f7db4dd0bbd16a9c7d2950e7621f9aa57ad Mon Sep 17 00:00:00 2001
From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 21 Feb 2017 11:21:57 -0800
Subject: rdma_cm: fail iwarp accepts w/o connection params
From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxx>
Acked-by: Sean Hefty <sean.hefty@xxxxxxxxx>
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/core/cma.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3349,6 +3349,9 @@ 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;
Patches currently in stable-queue which might be from swise@xxxxxxxxxxxxxxxxxxxxx are
queue-4.4/rdma_cm-fail-iwarp-accepts-w-o-connection-params.patch