From: David Miller <davem@davemloft.net>
To: blackgod016574@gmail.com
Cc: kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ipv6_sockglue: Fix a missing-check bug in ip6_ra_control()
Date: Sat, 25 May 2019 11:00:29 -0700 (PDT) [thread overview]
Message-ID: <20190525.110029.1339691720534150701.davem@davemloft.net> (raw)
In-Reply-To: <20190524031946.GA6463@zhanggen-UX430UQ>
From: Gen Zhang <blackgod016574@gmail.com>
Date: Fri, 24 May 2019 11:19:46 +0800
> In function ip6_ra_control(), the pointer new_ra is allocated a memory
> space via kmalloc(). And it is used in the following codes. However,
> when there is a memory allocation error, kmalloc() fails. Thus null
> pointer dereference may happen. And it will cause the kernel to crash.
> Therefore, we should check the return value and handle the error.
>
> Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Applied.
next prev parent reply other threads:[~2019-05-25 18:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 3:19 [PATCH] ipv6_sockglue: Fix a missing-check bug in ip6_ra_control() Gen Zhang
2019-05-25 18:00 ` David Miller [this message]
2019-07-01 8:57 ` Jiri Slaby
2019-07-01 9:06 ` Gen Zhang
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=20190525.110029.1339691720534150701.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=blackgod016574@gmail.com \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=yoshfuji@linux-ipv6.org \
/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).