linux-kernel - Re: [PATCH net v1] net: qualcomm: rmnet: fix global oob in rmnet

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Date: Fri, 12 Jan 2024 00:40:25 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Lin Ma <linma@....edu.cn>
Cc: quic_subashab@...cinc.com, quic_stranche@...cinc.com, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v1] net: qualcomm: rmnet: fix global oob in rmnet_policy

Hello:

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

On Wed, 10 Jan 2024 14:14:00 +0800 you wrote:
> The variable rmnet_link_ops assign a *bigger* maxtype which leads to a
> global out-of-bounds read when parsing the netlink attributes. See bug
> trace below:
> 
> ==================================================================
> BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]
> BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600
> Read of size 1 at addr ffffffff92c438d0 by task syz-executor.6/84207
> 
> [...]

Here is the summary with links:
  - [net,v1] net: qualcomm: rmnet: fix global oob in rmnet_policy
    https://git.kernel.org/netdev/net/c/b33fb5b801c6

You are awesome, thank you!
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