From patchwork Mon Jan 23 12:39:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 645837 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F21CC54E94 for ; Mon, 23 Jan 2023 12:39:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231718AbjAWMjh (ORCPT ); Mon, 23 Jan 2023 07:39:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231707AbjAWMje (ORCPT ); Mon, 23 Jan 2023 07:39:34 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41FE9E392; Mon, 23 Jan 2023 04:39:34 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D21E560EBA; Mon, 23 Jan 2023 12:39:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0AD4C4339E; Mon, 23 Jan 2023 12:39:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1674477573; bh=1PI2T5xveMfDhZZ24HxZ12AYBSpicLQJgjLOms+7IWc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TfBWCxrKATaYDGEuyWhveiyfP9aPAsTaSIWR9VUX5yKLfK+bordjPFzspyg0nFE1g ndmdMJMrExgEN1AtuTd/lv/2Aau89XPTDBIJYHgix+i5MD2jAWfa13i8bnEZw5/0oq lW/BRtPJhd1VRDX2p3xndEnGfhA9t9ruCbf3lTaoDcOK+9/dvGfGwbEwzlmdboP3C1 Mdt4OE27WKb3DBHhs5agMj/1jH2WRhJz/LKP6/xe88/iPOU7qB3kewR5HX7kWjYI9f YbFzI2ldw06X1maCex40r7Wdh9kzM9CxXDXMzzP9vNCFbJjNo8I3jnJcm6HWEi++6G qV9fCkEtMgZaQ== From: Lee Jones To: lee@kernel.org, jikos@kernel.org, benjamin.tissoires@redhat.com, avid.rheinsberg@gmail.com Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v2 2/2] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Mon, 23 Jan 2023 12:39:12 +0000 Message-Id: <20230123123912.360651-2-lee@kernel.org> X-Mailer: git-send-email 2.39.0.246.g2a6d74b583-goog In-Reply-To: <20230123123912.360651-1-lee@kernel.org> References: <20230123123912.360651-1-lee@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org 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 --- drivers/hid/uhid.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index 2a918aeb0af13..59ac757c1d471 100644 --- 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);