From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3B0A61C03 for ; Mon, 20 Mar 2023 14:58:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ADF3EC433EF; Mon, 20 Mar 2023 14:58:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1679324282; bh=+Kl/ommXueNTEM+LxuqbxN5eWuPXnpCntTL30FhEThU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z7TIGPE/sgJgQaLRlyni/HBoejdo3ZO0U4epGpXo+MGd53W92I6gTidPnW7TghSwN x0mnE4iDmMWwuYM2IR4SX2ETuo/q9S1YoiII+XYinbXSCQp3MtgbM9lz/M2BMLtFry Y3A5ZOFuHeT2t6l+dNqlWjjQlR2+PoTdTZLgW/Lk= From: Greg Kroah-Hartman To: stable@vger.kernel.org, lee@kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiri Kosina Subject: [PATCH 4.14 30/30] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Mon, 20 Mar 2023 15:54:54 +0100 Message-Id: <20230320145421.379804089@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230320145420.204894191@linuxfoundation.org> References: <20230320145420.204894191@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Lee Jones 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: Lee Jones Signed-off-by: Greg Kroah-Hartman --- drivers/hid/uhid.c | 1 + 1 file changed, 1 insertion(+) --- 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);