Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933502AbaLBXdL (ORCPT ); Tue, 2 Dec 2014 18:33:11 -0500 Received: from mail.sigma-star.at ([95.130.255.111]:14389 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933477AbaLBXdJ (ORCPT ); Tue, 2 Dec 2014 18:33:09 -0500 From: Richard Weinberger To: jic23@kernel.org Cc: harald@ccbib.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sanjeev_sharma@mentor.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Weinberger Subject: [PATCH 4/4] iio: dht11: Fix out-of-bounds read Date: Wed, 3 Dec 2014 00:32:56 +0100 Message-Id: <1417563176-31972-5-git-send-email-richard@nod.at> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1417563176-31972-1-git-send-email-richard@nod.at> References: <1417563176-31972-1-git-send-email-richard@nod.at> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As we access i-1 we must not start with i=0. Signed-off-by: Richard Weinberger --- drivers/iio/humidity/dht11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c index fbcd7cb..5dfe71b 100644 --- a/drivers/iio/humidity/dht11.c +++ b/drivers/iio/humidity/dht11.c @@ -90,7 +90,7 @@ static int dht11_decode(struct dht11 *dht11, int offset) unsigned char temp_int, temp_dec, hum_int, hum_dec, checksum; /* Calculate timestamp resolution */ - for (i = 0; i < dht11->num_edges; ++i) { + for (i = 1; i < dht11->num_edges; ++i) { t = dht11->edges[i].ts - dht11->edges[i-1].ts; if (t > 0 && t < timeres) timeres = t; -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/