From: Daniel Borkmann <daniel@iogearbox.net>
To: Dan Carpenter <dan.carpenter@oracle.com>,
Alexei Starovoitov <ast@kernel.org>,
John Fastabend <john.fastabend@gmail.com>
Cc: 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 20:47:09 +0000 [thread overview]
Message-ID: <59A08CCD.2050603@iogearbox.net> (raw)
In-Reply-To: <20170825202714.64ivixeindjph3z6@mwanda>
On 08/25/2017 10:27 PM, 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>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
next prev parent reply other threads:[~2017-08-25 20:47 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 [this message]
2017-08-28 15:58 ` John Fastabend
2017-08-26 1:05 ` Alexei Starovoitov
2017-08-28 22:23 ` David Miller
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