netdev - Re: [PATCH net] net: fix geneve_opt length integer overflow

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Message-Id: 
 <174372183324.2713510.1369193781290801733.git-patchwork-notify@kernel.org>
Date: Thu, 03 Apr 2025 23:10:33 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Lin Ma <linma@....edu.cn>
Cc: davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, pablo@...filter.org,
 kadlec@...filter.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
 jiri@...nulli.us, lucien.xin@...il.com, pieter.jansenvanvuuren@...ronome.com,
 netdev@...r.kernel.org
Subject: Re: [PATCH net] net: fix geneve_opt length integer overflow

Hello:

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

On Thu,  3 Apr 2025 00:56:32 +0800 you wrote:
> struct geneve_opt uses 5 bit length for each single option, which
> means every vary size option should be smaller than 128 bytes.
> 
> However, all current related Netlink policies cannot promise this
> length condition and the attacker can exploit a exact 128-byte size
> option to *fake* a zero length option and confuse the parsing logic,
> further achieve heap out-of-bounds read.
> 
> [...]

Here is the summary with links:
  - [net] net: fix geneve_opt length integer overflow
    https://git.kernel.org/netdev/net/c/b27055a08ad4

You are awesome, thank you!
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