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[ Upstream commit495a4f0dce] 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>