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Marius Zachmann 4eb5cc4839 hwmon: (corsair-cpro) Validate the size of the received input buffer
[ Upstream commit 495a4f0dce ]

Add buffer_recv_size to store the size of the received bytes.
Validate buffer_recv_size in send_usb_cmd().

Reported-by: syzbot+3bbbade4e1a7ab45ca3b@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-hwmon/61233ba1-e5ad-4d7a-ba31-3b5d0adcffcc@roeck-us.net
Fixes: 40c3a44542 ("hwmon: add Corsair Commander Pro driver")
Signed-off-by: Marius Zachmann <mail@mariuszachmann.de>
Link: https://lore.kernel.org/r/20250619132817.39764-5-mail@mariuszachmann.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-08-28 16:24:01 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.