linux-hardening - Re: [PATCH] net: qed: Fix memcpy() overflow of qed_dcbx

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Message-Id: <162395760365.22568.16521741419925994690.git-patchwork-notify@kernel.org>
Date:   Thu, 17 Jun 2021 19:20:03 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kees Cook <keescook@...omium.org>
Cc:     alobakin@...me, aelior@...vell.com, davem@...emloft.net,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        GR-everest-linux-l2@...vell.com, netdev@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH] net: qed: Fix memcpy() overflow of qed_dcbx_params()

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 17 Jun 2021 10:09:53 -0700 you wrote:
> The source (&dcbx_info->operational.params) and dest
> (&p_hwfn->p_dcbx_info->set.config.params) are both struct qed_dcbx_params
> (560 bytes), not struct qed_dcbx_admin_params (564 bytes), which is used
> as the memcpy() size.
> 
> However it seems that struct qed_dcbx_operational_params
> (dcbx_info->operational)'s layout matches struct qed_dcbx_admin_params
> (p_hwfn->p_dcbx_info->set.config)'s 4 byte difference (3 padding, 1 byte
> for "valid").
> 
> [...]

Here is the summary with links:
  - net: qed: Fix memcpy() overflow of qed_dcbx_params()
    https://git.kernel.org/netdev/net/c/1c200f832e14

You are awesome, thank you!
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