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

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Subject: Re: [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb in coredump
From: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>
Date: Fri, 19 Apr 2024 15:42:00 -0400
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Cc: Sean Wang <sean.wang@xxxxxxxxxxxx>, linux-bluetooth@xxxxxxxxxxxxxxx, linux-mediatek@xxxxxxxxxxxxxxxxxxx, kernel-janitors@xxxxxxxxxxxxxxx, Johan Hedberg <johan.hedberg@xxxxxxxxx>, Marcel Holtmann <marcel@xxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Sean Wang <sean.wang@xxxxxxxxxx>, Chris Lu <chris.lu@xxxxxxxxxxxx>, Dan Carpenter <dan.carpenter@xxxxxxxxxx>, Deren Wu <deren.wu@xxxxxxxxxxxx>, Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx>, Manish Mandlik <mmandlik@xxxxxxxxxx>, Miao-chen Chou <mcchou@xxxxxxxxxxxx>, Michael Sun <michaelfsun@xxxxxxxxxx>, shawnku@xxxxxxxxxx, frankgor@xxxxxxxxxx, jsiuda@xxxxxxxxxx
In-reply-to: <cb593f2a-7dbe-44aa-b9ff-7fc57a4bd70a@web.de>
References: <da0859c4b24d314d9ff38179c26a58ee7e3f16d6.1713395895.git.sean.wang@kernel.org> <cb593f2a-7dbe-44aa-b9ff-7fc57a4bd70a@web.de>

Hi Markus,

On Thu, Apr 18, 2024 at 5:40 AM Markus Elfring <Markus.Elfring@xxxxxx> 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

Follow-Ups:
- Re: Bluetooth: btusb: medaitek: fix double free of skb in coredump
  - From: Markus Elfring

References:
- [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb in coredump
  - From: sean . wang
- Re: [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb in coredump
  - From: Markus Elfring

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