netdev - Re: [PATCH net-next] bpf: dev_map_alloc() shouldn't return NULL

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Date:   Sat, 22 Jul 2017 12:09:53 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        John Fastabend <john.fastabend@...il.com>
CC:     netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-next] bpf: dev_map_alloc() shouldn't return NULL

On 07/22/2017 09:40 AM, Dan Carpenter wrote:
> We forgot to set the error code on two error paths which means that we
> return ERR_PTR(0) which is NULL.  The caller, find_and_alloc_map(), is
> not expecting that and will have a NULL dereference.
>
> Fixes: 546ac1ffb70d ("bpf: add devmap, a map for storing net device references")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Thanks!

Acked-by: Daniel Borkmann <daniel@...earbox.net>