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

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Message-ID: <Y00XKw+Vs5Bo8jkZ@kroah.com>
Date:   Mon, 17 Oct 2022 10:49:47 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Yang Yingliang <yangyingliang@...wei.com>
Cc:     linux-kernel@...r.kernel.org, rafael@...nel.org
Subject: Re: [PATCH] kobject: fix possible memory leak in
 kset_create_and_add()

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.

thanks,

greg k-h