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Date:   Wed, 27 Sep 2023 08:57:36 -0700
From:   Kees Cook <keescook@chromium.org>
To:     Jakub Kicinski <kuba@kernel.org>
Cc:     Jamal Hadi Salim <jhs@mojatatu.com>,
        "David S. Miller" <davem@davemloft.net>,
        David Ahern <dsahern@kernel.org>,
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        "Gustavo A. R. Silva" <gustavoars@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        Yisen Zhuang <yisen.zhuang@huawei.com>,
        Salil Mehta <salil.mehta@huawei.com>,
        Claudiu Manoil <claudiu.manoil@nxp.com>,
        Vladimir Oltean <vladimir.oltean@nxp.com>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
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        Cong Wang <xiyou.wangcong@gmail.com>,
        Jiri Pirko <jiri@resnulli.us>,
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        llvm@lists.linux.dev, linux-hardening@vger.kernel.org
Subject: Re: [PATCH 00/14] Batch 1: Annotate structs with __counted_by
Message-ID: <202309270854.67756EAC2@keescook>
References: <20230922172449.work.906-kees@kernel.org>
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On Fri, Sep 22, 2023 at 10:28:42AM -0700, Kees Cook wrote:
> This is the batch 1 of patches touching netdev for preparing for
> the coming implementation by GCC and Clang of the __counted_by
> attribute. Flexible array members annotated with __counted_by can have
> their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
> (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
> functions).
> 
> As found with Coccinelle[1], add __counted_by to structs that would
> benefit from the annotation.
> 
> Since the element count member must be set before accessing the annotated
> flexible array member, some patches also move the member's initialization
> earlier. (These are noted in the individual patches.)

Hi, just checking on this batch of changes. Is it possible to take the
1-13 subset:

> Kees Cook (14):
>   ipv4: Annotate struct fib_info with __counted_by
>   ipv4/igmp: Annotate struct ip_sf_socklist with __counted_by
>   ipv6: Annotate struct ip6_sf_socklist with __counted_by
>   net: hns: Annotate struct ppe_common_cb with __counted_by
>   net: enetc: Annotate struct enetc_int_vector with __counted_by
>   net: hisilicon: Annotate struct rcb_common_cb with __counted_by
>   net: mana: Annotate struct mana_rxq with __counted_by
>   net: ipa: Annotate struct ipa_power with __counted_by
>   net: mana: Annotate struct hwc_dma_buf with __counted_by
>   net: openvswitch: Annotate struct dp_meter_instance with __counted_by
>   net: enetc: Annotate struct enetc_psfp_gate with __counted_by
>   net: openvswitch: Annotate struct dp_meter with __counted_by
>   net: tulip: Annotate struct mediatable with __counted_by

I'll respin 14 and add it to the next batch:

>   net: sched: Annotate struct tc_pedit with __counted_by

After these 13, there are  32 more patches to various drivers and
protocols...

Thanks!

-Kees

-- 
Kees Cook