From nobody Wed Sep 3 05:54:51 2025 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 DFD25FA3742 for ; Mon, 24 Oct 2022 16:53:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231544AbiJXQxR (ORCPT ); Mon, 24 Oct 2022 12:53:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235335AbiJXQtZ (ORCPT ); Mon, 24 Oct 2022 12:49:25 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B48CD65B7; Mon, 24 Oct 2022 08:32:28 -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 ams.source.kernel.org (Postfix) with ESMTPS id CBCA9B81203; Mon, 24 Oct 2022 12:03:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D226C433D6; Mon, 24 Oct 2022 12:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666613027; bh=ksRKJY5TQUMx/Q1CSvNcnmyPvkMbckLSJ11m16BwXMg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R9T2TNYEwUG4oLRdtWJadhBzfUFM2bwc+RgqNV9OEH/GPRyJhJZl3nsD3CqjWL33p ZVU3f93G2iY6EPSRkXPjRfFNOAvGZS5cZg0qxptXAKbVwMY9drbhSpTn0i3ha3fBKp ptzXbSN5Qyd4bV3gWr46OBPCbDF967t/MZe1FRic= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wei Yongjun , Michael Hennerich , Sebastian Reichel , Sasha Levin Subject: [PATCH 4.19 210/229] power: supply: adp5061: fix out-of-bounds read in adp5061_get_chg_type() Date: Mon, 24 Oct 2022 13:32:09 +0200 Message-Id: <20221024113005.989970320@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024112959.085534368@linuxfoundation.org> References: <20221024112959.085534368@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Wei Yongjun [ Upstream commit 9d47e01b9d807808224347935562f7043a358054 ] ADP5061_CHG_STATUS_1_CHG_STATUS is masked with 0x07, which means a length of 8, but adp5061_chg_type array size is 4, may end up reading 4 elements beyond the end of the adp5061_chg_type[] array. Signed-off-by: Wei Yongjun Acked-by: Michael Hennerich Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/adp5061.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/power/supply/adp5061.c b/drivers/power/supply/adp5061.c index 939fd3d8fb1a..1ad044330599 100644 --- a/drivers/power/supply/adp5061.c +++ b/drivers/power/supply/adp5061.c @@ -428,11 +428,11 @@ static int adp5061_get_chg_type(struct adp5061_state = *st, if (ret < 0) return ret; =20 - chg_type =3D adp5061_chg_type[ADP5061_CHG_STATUS_1_CHG_STATUS(status1)]; - if (chg_type > ADP5061_CHG_FAST_CV) + chg_type =3D ADP5061_CHG_STATUS_1_CHG_STATUS(status1); + if (chg_type >=3D ARRAY_SIZE(adp5061_chg_type)) val->intval =3D POWER_SUPPLY_STATUS_UNKNOWN; else - val->intval =3D chg_type; + val->intval =3D adp5061_chg_type[chg_type]; =20 return ret; } --=20 2.35.1