linux-kernel - Re: [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb in coredump

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Message-ID: <CABBYNZL1=RyzuXcDpAwcXyOe_8Bh4gJtDzKdS55-3ZF4rZRj7A@mail.gmail.com>
Date: Fri, 19 Apr 2024 15:42:00 -0400
From: Luiz Augusto von Dentz <luiz.dentz@...il.com>
To: Markus Elfring <Markus.Elfring@....de>
Cc: Sean Wang <sean.wang@...iatek.com>, linux-bluetooth@...r.kernel.org, 
	linux-mediatek@...ts.infradead.org, kernel-janitors@...r.kernel.org, 
	Johan Hedberg <johan.hedberg@...il.com>, Marcel Holtmann <marcel@...tmann.org>, 
	LKML <linux-kernel@...r.kernel.org>, Sean Wang <sean.wang@...nel.org>, 
	Chris Lu <chris.lu@...iatek.com>, Dan Carpenter <dan.carpenter@...aro.org>, 
	Deren Wu <deren.wu@...iatek.com>, 
	Abhishek Pandit-Subedi <abhishekpandit@...omium.org>, Manish Mandlik <mmandlik@...gle.com>, 
	Miao-chen Chou <mcchou@...omium.org>, Michael Sun <michaelfsun@...gle.com>, shawnku@...gle.com, 
	frankgor@...gle.com, jsiuda@...gle.com
Subject: Re: [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb
 in coredump

Hi Markus,

On Thu, Apr 18, 2024 at 5:40 AM Markus Elfring <Markus.Elfring@....de> wrote:
>
> > hci_devcd_append() would free the skb on error so the caller don't
> > have to free it again otherwise it would cause the double free of skb.
>
> I hope that a typo will be avoided in the subsystem specification
> for the final commit.

Are you talking about medaitek or is there another typo?


> Regards,
> Markus



-- 
Luiz Augusto von Dentz