linux-kernel - Re: [PATCH v4 net] tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer

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Message-Id: 
 <175028220675.262925.8913605552414579923.git-patchwork-notify@kernel.org>
Date: Wed, 18 Jun 2025 21:30:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Haixia Qu <hxqu@...lstonenet.com>
Cc: jmaloy@...hat.com, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, netdev@...r.kernel.org,
 tipc-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 net] tipc: fix null-ptr-deref when acquiring remote ip
 of
 ethernet bearer

Hello:

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

On Tue, 17 Jun 2025 05:56:24 +0000 you wrote:
> The reproduction steps:
> 1. create a tun interface
> 2. enable l2 bearer
> 3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun
> 
> tipc: Started in network mode
> tipc: Node identity 8af312d38a21, cluster identity 4711
> tipc: Enabled bearer <eth:syz_tun>, priority 1
> Oops: general protection fault
> KASAN: null-ptr-deref in range
> CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT
> Hardware name: QEMU Ubuntu 24.04 PC
> RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0
> 
> [...]

Here is the summary with links:
  - [v4,net] tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer
    https://git.kernel.org/netdev/net/c/f82727adcf29

You are awesome, thank you!
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