linux-kernel - Re: [PATCH] kobject: fix possible memory leak in kset_create_and

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Message-ID: <3a661911-fb26-3d36-a78b-0778c0fceec2@huawei.com>
Date:   Mon, 17 Oct 2022 17:01:04 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     <linux-kernel@...r.kernel.org>, <rafael@...nel.org>
Subject: Re: [PATCH] kobject: fix possible memory leak in
 kset_create_and_add()


On 2022/10/17 16:49, Greg KH wrote:
> On Mon, Oct 17, 2022 at 04:13:03PM +0800, Yang Yingliang wrote:
>> Hi,
>>
>> On 2022/10/17 12:51, Greg KH wrote:
>>> On Mon, Oct 17, 2022 at 10:33:27AM +0800, Yang Yingliang wrote:
>>>> If kset_register() fails in kset_create_and_add(), the name allocated
>>>> in kset_create() will be leaked.
>>> How is kset_create_and_add() failing?  Is this in a real kernel, or
>>> created with a fake fault injection?
>> Inject fault while probing module qemu_fw_cfg, kset_create_and_add() may
>> fail.
> Ah good, it's never being hit in a real situation.  The next time you
> submit patches that are found like this, please include this type of
> information.
OK. Do I need to send a v2 with commit message update.

Thanks,
Yang
>
> thanks,
>
> greg k-h
> .