linux-kernel - Re: [PATCH] usb: gadget: configfs: Fix OOB read on empty string write

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Message-ID: <1f827061-d2f1-451b-952d-3d1631d7c9a9@gmail.com>
Date: Wed, 9 Jul 2025 22:02:28 +0300
From: Sergey Shtylyov <sergei.shtylyov@...il.com>
To: Xinyu Liu <1171169449@...com>, gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
 katieeliu@...cent.com, security@...cent.com
Subject: Re: [PATCH] usb: gadget: configfs: Fix OOB read on empty string write

On 7/9/25 1:22 PM, Xinyu Liu wrote:
[...]

> You are right, removing the blank line is inappropriate.

   Empty lines separating declarations from the other statements should be kept...

> I’ve double-checked the original code and confirmed there are no invisible spaces or tabs,

   I'm not seeing them as well in your patch...

> yet checkpatch.pl still reports "ERROR: trailing whitespace" on these lines. I removed the empty line here, and it resolved the error.

   Hm... something wrong with your setup, I guess...

> Thanks for pointing this out!

[...]
MBR, Sergey