From: Andrew Lunn <andrew@lunn.ch>
To: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Cc: Brandon Streiff <brandon.streiff@ni.com>,
Vivien Didelot <vivien.didelot@savoirfairelinux.com>,
Florian Fainelli <f.fainelli@gmail.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] net: dsa: mv88e6xxx: hwtstamp: fix potential negative array index read
Date: Thu, 15 Feb 2018 22:12:51 +0100 [thread overview]
Message-ID: <20180215211251.GC3080@lunn.ch> (raw)
In-Reply-To: <20180215183139.GA23076@embeddedor.com>
On Thu, Feb 15, 2018 at 12:31:39PM -0600, Gustavo A. R. Silva wrote:
> _port_ is being used as index to array port_hwtstamp before verifying
> it is a non-negative number and a valid index at line 209 and 258:
>
> if (port < 0 || port >= mv88e6xxx_num_ports(chip))
>
> Fix this by checking _port_ before using it as index to array
> port_hwtstamp.
>
> Addresses-Coverity-ID: 1465287 ("Negative array index read")
> Addresses-Coverity-ID: 1465291 ("Negative array index read")
> Fixes: c6fe0ad2c349 ("net: dsa: mv88e6xxx: add rx/tx timestamping support")
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2018-02-15 21:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-15 18:31 [PATCH v2] net: dsa: mv88e6xxx: hwtstamp: fix potential negative array index read Gustavo A. R. Silva
2018-02-15 21:12 ` Andrew Lunn [this message]
2018-02-16 15:48 ` Richard Cochran
2018-02-16 15:55 ` Andrew Lunn
2018-02-16 15:56 ` Richard Cochran
2018-02-16 17:49 ` Gustavo A. R. Silva
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=20180215211251.GC3080@lunn.ch \
--to=andrew@lunn.ch \
--cc=brandon.streiff@ni.com \
--cc=f.fainelli@gmail.com \
--cc=garsilva@embeddedor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=vivien.didelot@savoirfairelinux.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;
as well as URLs for NNTP newsgroup(s).