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

From Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Newsgroups linux.kernel
Subject Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20
Date 2017-08-01 21:30 +0200
Message-ID <u9L1E-85L-17@gated-at.bofh.it> (permalink)
References <u8hoZ-6JP-13@gated-at.bofh.it> <u9DdL-3gc-15@gated-at.bofh.it> <u9Kff-7x4-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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@vger.kernel.org> # v2.6.14+
 Reviewed-by: Steve Wise <swise@opengridcomputing.com>
 Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>

Jason

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Thread

Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Matan Barak <matanb@dev.mellanox.co.il> - 2017-08-01 13:10 +0200
  Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Potnuri Bharat Teja <bharat@chelsio.com> - 2017-08-01 14:40 +0200
    Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Logan Gunthorpe <logang@deltatee.com> - 2017-08-01 20:40 +0200
  Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Logan Gunthorpe <logang@deltatee.com> - 2017-08-01 20:40 +0200
    Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-08-01 21:30 +0200
      Re: BUG: NULL pointer dereference at ib_uverbs_comp_handler+0x20 Logan Gunthorpe <logang@deltatee.com> - 2017-08-01 21:50 +0200

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