netdev - Re: [PATCH v3 net] ipvlan: Fix use-after-free in ipvlan_get

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Message-Id: 
 <173630223252.165659.12682571299886198939.git-patchwork-notify@kernel.org>
Date: Wed, 08 Jan 2025 02:10:32 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, horms@...nel.org, vladimir.oltean@....com,
 kuni1840@...il.com, netdev@...r.kernel.org, syzkaller@...glegroups.com
Subject: Re: [PATCH v3 net] ipvlan: Fix use-after-free in ipvlan_get_iflink().

Hello:

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

On Mon, 6 Jan 2025 16:19:11 +0900 you wrote:
> syzbot presented an use-after-free report [0] regarding ipvlan and
> linkwatch.
> 
> ipvlan does not hold a refcnt of the lower device unlike vlan and
> macvlan.
> 
> If the linkwatch work is triggered for the ipvlan dev, the lower dev
> might have already been freed, resulting in UAF of ipvlan->phy_dev in
> ipvlan_get_iflink().
> 
> [...]

Here is the summary with links:
  - [v3,net] ipvlan: Fix use-after-free in ipvlan_get_iflink().
    https://git.kernel.org/netdev/net/c/cb358ff94154

You are awesome, thank you!
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