linux-hardening - Re: [PATCH] mptcp: Use struct_group() to avoid cross-field memset()

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Date:   Sat, 22 Jan 2022 03:40:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kees Cook <keescook@...omium.org>
Cc:     mathew.j.martineau@...ux.intel.com, matthieu.baerts@...sares.net,
        davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        mptcp@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH] mptcp: Use struct_group() to avoid cross-field memset()

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 20 Jan 2022 23:39:35 -0800 you wrote:
> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memcpy(), memmove(), and memset(), avoid
> intentionally writing across neighboring fields.
> 
> Use struct_group() to capture the fields to be reset, so that memset()
> can be appropriately bounds-checked by the compiler.
> 
> [...]

Here is the summary with links:
  - mptcp: Use struct_group() to avoid cross-field memset()
    https://git.kernel.org/netdev/net/c/63ec72bd5848

You are awesome, thank you!
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