From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH net-next] bpf: fix oops on allocation failure
Date: Fri, 25 Aug 2017 18:05:58 -0700 [thread overview]
Message-ID: <20170826010556.rxoyckykv6bwg47o@ast-mbp> (raw)
In-Reply-To: <20170825202714.64ivixeindjph3z6@mwanda>
On Fri, Aug 25, 2017 at 11:27:14PM +0300, Dan Carpenter wrote:
> "err" is set to zero if bpf_map_area_alloc() fails so it means we return
> ERR_PTR(0) which is NULL. The caller, find_and_alloc_map(), is not
> expecting NULL returns and will oops.
>
> Fixes: 174a79ff9515 ("bpf: sockmap with sk redirect support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
good catch. Thanks!
Acked-by: Alexei Starovoitov <ast@kernel.org>
next prev parent reply other threads:[~2017-08-26 1:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 20:27 [PATCH net-next] bpf: fix oops on allocation failure Dan Carpenter
2017-08-25 20:47 ` Daniel Borkmann
2017-08-28 15:58 ` John Fastabend
2017-08-26 1:05 ` Alexei Starovoitov [this message]
2017-08-28 22:23 ` David Miller
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=20170826010556.rxoyckykv6bwg47o@ast-mbp \
--to=alexei.starovoitov@gmail.com \
--cc=ast@kernel.org \
--cc=dan.carpenter@oracle.com \
--cc=daniel@iogearbox.net \
--cc=john.fastabend@gmail.com \
--cc=kernel-janitors@vger.kernel.org \
--cc=netdev@vger.kernel.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