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 6B5C8C7618A for ; Mon, 20 Mar 2023 01:06:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231168AbjCTBGB (ORCPT ); Sun, 19 Mar 2023 21:06:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231705AbjCTBFZ (ORCPT ); Sun, 19 Mar 2023 21:05:25 -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 091BDD30F; Sun, 19 Mar 2023 17:58:33 -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 62AC961203; Mon, 20 Mar 2023 00:57:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6B8BC433EF; Mon, 20 Mar 2023 00:57:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679273829; bh=TuAJZ+k8hTbDsjg6vfN3jftPCZL8GO6/3bwa3bV2Irc=; h=From:To:Cc:Subject:Date:From; b=boXgG+PXabs6fXNQvN+e+ww68zB4dtZGtL/fO/uDum6oo/QvZdE7yjI7pc0E68pqb Sv5hz2UPyL86GAnGYX42Cx9mRNctZx/Lum9+kXvK8orO3d0tpxxZjFar9amouNW8Od q/pv6xi9aGa9uRHCckhhv+Wec8HarcqmkBwoAuNnXntYBz5neN33OkN9JtdzoeuqD6 R20Th1V1Q8sMBFKZBMK8YxVmsu6cIncuCCaR90FMmiX9Ho/Fs7AdoxhfQ6zcE5uwFy tI+19lVw0UfAectA7+qm7SY3whuBWJx16GEFuVvW1VoAU1PrN9P7vLVKg8key1jPN/ 7HX+SiPI79CvQ== 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 4.19 1/9] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Sun, 19 Mar 2023 20:56:59 -0400 Message-Id: <20230320005707.1429405-1-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 e128b9ce156df..44df81d56d9ca 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -398,6 +398,7 @@ 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