public inbox for kernel-janitors@vger.kernel.org
 help / color / mirror / Atom feed
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Yishai Hadas <yishaih@mellanox.com>,
	Doug Ledford <dledford@redhat.com>,
	linux-rdma@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: IB/mlx4: Potential buffer overflow in _mlx4_set_path()
Date: Wed, 13 Dec 2017 18:20:37 +0000	[thread overview]
Message-ID: <20171213182037.GF5984@ziepe.ca> (raw)
In-Reply-To: <20171205143923.26dqc3ekhbmtmsgt@mwanda>

On Tue, Dec 05, 2017 at 05:39:23PM +0300, Dan Carpenter wrote:
> Smatch complains about this code:
> 
>     drivers/infiniband/hw/mlx4/qp.c:1827 _mlx4_set_path()
>     error: buffer overflow 'dev->dev->caps.gid_table_len' 3 <= 255
> 
> The mlx4_ib_gid_index_to_real_index() does check that "port" is within
> bounds, but we don't check the return value for errors.  It seems simple
> enough to add a check for that.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> Reviewed-by: Leon Romanovsky <leonro@mellanox.com>

Thanks, applied to -next

Jason

      parent reply	other threads:[~2017-12-13 18:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-05 14:39 [PATCH] IB/mlx4: Potential buffer overflow in _mlx4_set_path() Dan Carpenter
2017-12-05 15:53 ` Leon Romanovsky
2017-12-13 18:20 ` Jason Gunthorpe [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20171213182037.GF5984@ziepe.ca \
    --to=jgg@ziepe.ca \
    --cc=dan.carpenter@oracle.com \
    --cc=dledford@redhat.com \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linux-rdma@vger.kernel.org \
    --cc=yishaih@mellanox.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox