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 D456DC7618D for ; Mon, 20 Mar 2023 13:09:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230383AbjCTNJg (ORCPT ); Mon, 20 Mar 2023 09:09:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231461AbjCTNJf (ORCPT ); Mon, 20 Mar 2023 09:09:35 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31117BDF5 for ; Mon, 20 Mar 2023 06:09:34 -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 CA65DB80DD3 for ; Mon, 20 Mar 2023 13:09:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FDEEC433D2; Mon, 20 Mar 2023 13:09:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679317771; bh=7B3qRcTjumQDLkls6mq+fbRzckajF3H35IG9NvnQmHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D+Yu03AHyd3LkhiJ3MvzW2rYBTbQ9Lw3StmQdr4tx5RlgAranYX5TTJzmh1TyYR1g WzCEZW2cqz7N9KVmMPpArD9Iu8SQ09CgtepZFMPfUMSFCZxypNoiQf4T9W90q3CWnE Spuqr6f3TRyckc3Q2WCQMcNnkXgOLAQ7qSJfKnOE1Guw79Fdk7KWb3K6YjTUA2fO7k AYIsH4zk+SsM8L5KUha26jrUrGbSXUmwrhKJvWaZ65kLJRbM7pp6aX6prmIVqC2Pr/ YoKHJuYirDklS8z4SqlUk+4TAipxSYsGVPucOGeqKDxbXXiCUeXGgKI67cDFyNDWXb VM9eNdW3ukQHQ== From: Lee Jones To: lee@kernel.org Cc: stable@vger.kernel.org, Jiri Kosina , Greg Kroah-Hartman Subject: [PATCH v4.14.y 2/2] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Mon, 20 Mar 2023 13:09:23 +0000 Message-Id: <20230320130923.2771901-2-lee@kernel.org> X-Mailer: git-send-email 2.40.0.rc1.284.g88254d51c5-goog In-Reply-To: <20230320130923.2771901-1-lee@kernel.org> References: <20230320130923.2771901-1-lee@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 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 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 333b6a769189c..b7efc5c055be1 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -399,6 +399,7 @@ 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); -- 2.40.0.rc1.284.g88254d51c5-goog