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: Markus Elfring <Markus.Elfring@xxxxxx>
Date: Thu, 18 Apr 2024 11:40:26 +0200
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Cc: 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: <da0859c4b24d314d9ff38179c26a58ee7e3f16d6.1713395895.git.sean.wang@kernel.org>
References: <da0859c4b24d314d9ff38179c26a58ee7e3f16d6.1713395895.git.sean.wang@kernel.org>
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> 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.

Regards,
Markus

Follow-Ups:
- Re: [PATCH RESEND] Bluetooth: btusb: medaitek: fix double free of skb in coredump
  - From: Luiz Augusto von Dentz

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

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