Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20

Jason Gunthorpe
2017-08-01T19:29:07Z

On Tue, Aug 01, 2017 at 12:32:57PM -0600, Logan Gunthorpe wrote:
> Couldn't create rdma QP - Invalid argument
> Unable to create QP.
> Failed to create QP.

Failing to create a QP makes me wonder if you have have this patch?

Subject: [PATCH v2 1/2] RDMA/uverbs: Fix the check for port number

The port number is only valid if IB_QP_PORT is set in the mask.
So only check port number if it is valid to prevent modify_qp from
failing due to an invalid port number.

Fixes: 5ecce4c9b17b("Check port number supplied by user verbs cmds")
Cc: <stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org> # v2.6.14+
Reviewed-by: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
Signed-off-by: Mustafa Ismail <mustafa.ismail-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Jason
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