netdev - Re: [PATCH bpf] bpf: fix for BUG: kernel NULL pointer dereference, address: 0000000000000000

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Date:   Thu, 8 Jul 2021 08:44:48 -0600
From:   David Ahern <dsahern@...il.com>
To:     Jesper Dangaard Brouer <jbrouer@...hat.com>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, bpf@...r.kernel.org
Cc:     brouer@...hat.com, "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        netdev@...r.kernel.org, Abaci <abaci@...ux.alibaba.com>,
        Dust Li <dust.li@...ux.alibaba.com>,
        David Ahern <dsahern@...nel.org>
Subject: Re: [PATCH bpf] bpf: fix for BUG: kernel NULL pointer dereference,
 address: 0000000000000000

On 7/8/21 4:26 AM, Jesper Dangaard Brouer wrote:
> 
> Thanks for catching this.
> 
> Cc: Ahern, are you okay with disabling this for the
> bpf_prog_test_run_xdp() infra?

yes.

> 
> I don't think the selftests/bpf (e.g. prog_tests/xdp_devmap_attach.c)
> use the bpf_prog_test_run, right?
> 
> Acked-by: Jesper Dangaard Brouer <brouer@...hat.com>


Acked-by: David Ahern <dsahern@...nel.org>