netdev - Re: [PATCH v2 6/7] bpf: Make use of alignment information in check_val_ptr

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Message-ID: <5914A51B.1090007@iogearbox.net>
Date:   Thu, 11 May 2017 19:53:31 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     David Miller <davem@...emloft.net>
CC:     ast@...com, alexei.starovoitov@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2 6/7] bpf: Make use of alignment information in check_val_ptr_alignment().

On 05/11/2017 07:23 PM, David Miller wrote:
> From: Daniel Borkmann <daniel@...earbox.net>
> Date: Thu, 11 May 2017 18:49:45 +0200
>
>> This actually won't work, see also commit 79adffcd6489 ("bpf,
>> verifier:
>> fix rejection of unaligned access checks for map_value_adj") with some
>> longer explanation. In case of map_value_adj, reg->id is always 0.
>
> I see....
>
> Ok if I merge in the first 5 patches then?

Yes, please. :)

> I'll look more deeply into the MAP value issues.

Ok, thanks for looking into it!