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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B56FC33CAF for ; Thu, 16 Jan 2020 19:06:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD82F2072E for ; Thu, 16 Jan 2020 19:06:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579201588; bh=Mh2Tn7eWn8y9bDcNeYvSE7du4a5ckL384vsDHsccghA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DnAHoS/nDoVXHOeuCwFvtMppnLlOfn9EvaqMfg2etykvGcasC3N0XoS1YzKQUwnMH O4EpLWllfMlvMriyLZRjVUsB12Omzv2shd9YuhS1kOzaRuktDpYyBpDwaqPaPV+UGP wTA86SIJpSyABwtJGR5AVvo4AnKWdGsaY4BvlElE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437338AbgAPTG1 (ORCPT ); Thu, 16 Jan 2020 14:06:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:52918 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388130AbgAPRBh (ORCPT ); Thu, 16 Jan 2020 12:01:37 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0B19224653; Thu, 16 Jan 2020 17:01:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579194096; bh=Mh2Tn7eWn8y9bDcNeYvSE7du4a5ckL384vsDHsccghA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=geBdrNP3wrrby3H8c4GuKC4gJsJxmeX1V4jPv4fJYWDSqLF6YHdZf85kBXVotntAQ 5ioVUk+GTHmlmPTOKSFuC5Kd80hJDNF8ehYPpGE8s3Lgz0d1NYKTs1+H8SF4la6F3r GkcKFkUKn92kzZ7kc9LMeTllYCZhcgfZU+2bflG0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Axel Lin , Mark Brown , Sasha Levin Subject: [PATCH AUTOSEL 4.19 198/671] regulator: pv88080: Fix array out-of-bounds access Date: Thu, 16 Jan 2020 11:51:47 -0500 Message-Id: <20200116165940.10720-81-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116165940.10720-1-sashal@kernel.org> References: <20200116165940.10720-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Axel Lin [ Upstream commit 3c413f594c4f9df40061445667ca11a12bc8ee34 ] Fix off-by-one while iterating current_limits array. The valid index should be 0 ~ n_current_limits -1. Fixes: 99cf3af5e2d5 ("regulator: pv88080: new regulator driver") Signed-off-by: Axel Lin Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/regulator/pv88080-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/pv88080-regulator.c b/drivers/regulator/pv88080-regulator.c index 9a08cb2de501..6770e4de2097 100644 --- a/drivers/regulator/pv88080-regulator.c +++ b/drivers/regulator/pv88080-regulator.c @@ -279,7 +279,7 @@ static int pv88080_set_current_limit(struct regulator_dev *rdev, int min, int i; /* search for closest to maximum */ - for (i = info->n_current_limits; i >= 0; i--) { + for (i = info->n_current_limits - 1; i >= 0; i--) { if (min <= info->current_limits[i] && max >= info->current_limits[i]) { return regmap_update_bits(rdev->regmap, -- 2.20.1