From mboxrd@z Thu Jan 1 00:00:00 1970 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 1D222C7618E for ; Mon, 20 Mar 2023 01:06:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229679AbjCTBF7 (ORCPT ); Sun, 19 Mar 2023 21:05:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231376AbjCTBDd (ORCPT ); Sun, 19 Mar 2023 21:03:33 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 632CF2411A; Sun, 19 Mar 2023 17:57:52 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id 1877CB80D56; Mon, 20 Mar 2023 00:56:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D159EC433EF; Mon, 20 Mar 2023 00:56:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679273798; bh=N0JngPiakVmWn0pas8UQ6o3gjr4WlERh/VaRTspIy+Q=; h=From:To:Cc:Subject:Date:From; b=Jko9SgiW7JKDwjTxG6+63OH3iCuw4OjVeg7bEzhAcV53Dihx+OyLG2FfvQcNiNKy0 ROYeC+m28l50DgIa787pbE/arDB7zPWKfA6spKgiqZBd4l7EKPZjWdV8p16h/j4DEB E+Jx9u1ygYWCxEjLjKHCSpIV52SCKB0xZC623/ZQpDEqQqZsjwLJVOzx2tNgVTseeq AraiQGaQnPiIF4/ZDUTRjwJJhM4LVTKsmgflVxGvXyY9fnJ3gsO0ye56vMLH4aOJ47 /5diuqzkUEd+eYtz/+IwWVbmLraOgqFmC/MKkTbNdBACQ6OlEQhPmYzxLmEWoEbMeA 7oDGo1W3yGjhQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Lee Jones , Jiri Kosina , Sasha Levin , david.rheinsberg@gmail.com, jikos@kernel.org, benjamin.tissoires@redhat.com, linux-input@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 01/12] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Sun, 19 Mar 2023 20:56:24 -0400 Message-Id: <20230320005636.1429242-1-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Lee Jones [ Upstream commit 1c5d4221240a233df2440fe75c881465cdf8da07 ] 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: Sasha Levin --- drivers/hid/uhid.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index fc06d8bb42e0f..ba0ca652b9dab 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); -- 2.39.2