netdev - Re: [PATCH net v2] net: tipc: fix refcount warning in tipc_aead

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Message-Id: 
 <174851342900.3214659.3602583798283655289.git-patchwork-notify@kernel.org>
Date: Thu, 29 May 2025 10:10:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Charalampos Mitrodimas <charmitro@...teo.net>
Cc: jmaloy@...hat.com, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, wangliang74@...wei.com,
 netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
 linux-kernel@...r.kernel.org,
 syzbot+f0c4a4aba757549ae26c@...kaller.appspotmail.com
Subject: Re: [PATCH net v2] net: tipc: fix refcount warning in
 tipc_aead_encrypt

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Tue, 27 May 2025 16:35:44 +0000 you wrote:
> syzbot reported a refcount warning [1] caused by calling get_net() on
> a network namespace that is being destroyed (refcount=0). This happens
> when a TIPC discovery timer fires during network namespace cleanup.
> 
> The recently added get_net() call in commit e279024617134 ("net/tipc:
> fix slab-use-after-free Read in tipc_aead_encrypt_done") attempts to
> hold a reference to the network namespace. However, if the namespace
> is already being destroyed, its refcount might be zero, leading to the
> use-after-free warning.
> 
> [...]

Here is the summary with links:
  - [net,v2] net: tipc: fix refcount warning in tipc_aead_encrypt
    https://git.kernel.org/netdev/net/c/f29ccaa07cf3

You are awesome, thank you!
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