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

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Date:   Thu, 11 May 2017 13:23:54 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     daniel@...earbox.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().

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?

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