From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC94D4431 for ; Wed, 15 Mar 2023 12:31:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D7EFC4339B; Wed, 15 Mar 2023 12:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678883504; bh=XuyHaZuG0ru7yipTj0ogoYWBoD0KKQgXfqhXjejDRiY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kQki1hfj4Db2DQUnLQm/Dhju96NV4HeuT8O9f8XIaMKUYpouiz0lgXyhLeXyO4WTZ 9lNAvN1z9m4lNo9qW+3rVygmp9Krg6Ss7NHrYW8ISrbOYW8FdE6TYMnKjdg7B8fqmd 85ibUTLBv8jn1hKcuvb6tCrSi3Bw7IJ+WxJHgk7c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lee Jones , Jiri Kosina Subject: [PATCH 6.1 024/143] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Wed, 15 Mar 2023 13:11:50 +0100 Message-Id: <20230315115741.239665256@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230315115740.429574234@linuxfoundation.org> References: <20230315115740.429574234@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Lee Jones commit 1c5d4221240a233df2440fe75c881465cdf8da07 upstream. The default maximum data buffer size for this interface is UHID_DATA_MAX (4k). When data buffers are being processed, ensure this value is used when ensuring the sanity, rather than a value between the user provided value and HID_MAX_BUFFER_SIZE (16k). Signed-off-by: Lee Jones Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/uhid.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -395,6 +395,7 @@ struct hid_ll_driver uhid_hid_driver = { .parse = uhid_hid_parse, .raw_request = uhid_hid_raw_request, .output_report = uhid_hid_output_report, + .max_buffer_size = UHID_DATA_MAX, }; EXPORT_SYMBOL_GPL(uhid_hid_driver);