linux-kernel - Re: [PATCH v2] net: 6pack: fix slab-out-of-bounds in decode

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Date:   Mon, 16 Aug 2021 10:10:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Pavel Skripkin <paskripkin@...il.com>
Cc:     ajk@...nets.uni-bremen.de, davem@...emloft.net, kuba@...nel.org,
        linux-hams@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, dan.carpenter@...cle.com,
        syzbot+fc8cd9a673d4577fb2e4@...kaller.appspotmail.com
Subject: Re: [PATCH v2] net: 6pack: fix slab-out-of-bounds in decode_data

Hello:

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

On Fri, 13 Aug 2021 18:14:33 +0300 you wrote:
> Syzbot reported slab-out-of bounds write in decode_data().
> The problem was in missing validation checks.
> 
> Syzbot's reproducer generated malicious input, which caused
> decode_data() to be called a lot in sixpack_decode(). Since
> rx_count_cooked is only 400 bytes and noone reported before,
> that 400 bytes is not enough, let's just check if input is malicious
> and complain about buffer overrun.
> 
> [...]

Here is the summary with links:
  - [v2] net: 6pack: fix slab-out-of-bounds in decode_data
    https://git.kernel.org/netdev/net/c/19d1532a1876

You are awesome, thank you!
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