linux-kernel - Re: [PATCH net v2] rose: fix dangling neighbour pointers in rose_rt_device

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Message-Id: 
 <175142400742.183540.1698591972107897588.git-patchwork-notify@kernel.org>
Date: Wed, 02 Jul 2025 02:40:07 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kohei Enju <enjuk@...zon.com>
Cc: linux-hams@...r.kernel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, kohei.enju@...il.com,
 syzbot+e04e2c007ba2c80476cb@...kaller.appspotmail.com
Subject: Re: [PATCH net v2] rose: fix dangling neighbour pointers in
 rose_rt_device_down()

Hello:

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

On Sun, 29 Jun 2025 12:06:31 +0900 you wrote:
> There are two bugs in rose_rt_device_down() that can cause
> use-after-free:
> 
> 1. The loop bound `t->count` is modified within the loop, which can
>    cause the loop to terminate early and miss some entries.
> 
> 2. When removing an entry from the neighbour array, the subsequent entries
>    are moved up to fill the gap, but the loop index `i` is still
>    incremented, causing the next entry to be skipped.
> 
> [...]

Here is the summary with links:
  - [net,v2] rose: fix dangling neighbour pointers in rose_rt_device_down()
    https://git.kernel.org/netdev/net/c/34a500caf48c

You are awesome, thank you!
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