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 70842C6FD1F for ; Mon, 20 Mar 2023 00:58:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230049AbjCTA6d (ORCPT ); Sun, 19 Mar 2023 20:58:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230332AbjCTA5n (ORCPT ); Sun, 19 Mar 2023 20:57:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1154206B0; Sun, 19 Mar 2023 17:55:26 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 634EE61151; Mon, 20 Mar 2023 00:55:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED78DC4339B; Mon, 20 Mar 2023 00:55:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679273725; bh=N0JngPiakVmWn0pas8UQ6o3gjr4WlERh/VaRTspIy+Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RJCb83Ismanr4enTTAIpR5TtMuAmp7+NhrVdLuPkcvBWPYCgcbCiyJg9KGGeHTt7E cBj+bPiy9ShcrCzukVKlc6E6e03zKpbpaOy5UNVsSdX0vZ9BJL1rI31+qUAxdkxIcn 9RP2xD1fsMO2TsTtlIgDOQ7EZgqeaS479WwqASnY1Mv5F6zRhCNVWivonSwPhCVIJP Nf054oiG9xl/pBURO+1OZsDSoGNsdonJNdyyO9wQANVMVUwM/HuaxY+Ca+DzoCnI3c +JP6M8vqt9G1sxr1Lz5XmHar5aqWjz7z0Ipe1yxVL2y6l/WxsEs02pBJXUhsSy6i15 Apl+bsJtDb1cw== 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 5.15 02/17] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Sun, 19 Mar 2023 20:55:04 -0400 Message-Id: <20230320005521.1428820-2-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230320005521.1428820-1-sashal@kernel.org> References: <20230320005521.1428820-1-sashal@kernel.org> 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