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 86E1B1C03 for ; Mon, 20 Mar 2023 15:03:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09727C433EF; Mon, 20 Mar 2023 15:03:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1679324607; bh=9rquQIIV8+GqmTmFonBBAhWkmGTUPetbziXMm31iBjw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fwWpJwbhUrkfmfhKqQS3/iRw/OvpTotWWzj2z7MPYNdfAxD34Iqn0vJ6p9gk6e4Tb b1oaPj3ihar15fRF5Z64esYVsS3/5+ecPK0pbBn8rl6sFZJj9pqmGnn+co9g2dXn0I nlAhrFdclxDv/uFRPdcW87a8u45yMqJtetCbnCVs= From: Greg Kroah-Hartman To: stable@vger.kernel.org, lee@kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiri Kosina Subject: [PATCH 5.4 60/60] HID: uhid: Over-ride the default maximum data buffer value with our own Date: Mon, 20 Mar 2023 15:55:09 +0100 Message-Id: <20230320145433.430516289@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230320145430.861072439@linuxfoundation.org> References: <20230320145430.861072439@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 @@ -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);