From nobody Mon Feb 9 01:22:43 2026 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 5396CC7EE24 for ; Tue, 6 Jun 2023 08:00:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236152AbjFFIAn (ORCPT ); Tue, 6 Jun 2023 04:00:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236973AbjFFIAI (ORCPT ); Tue, 6 Jun 2023 04:00:08 -0400 Received: from mail.nfschina.com (unknown [42.101.60.195]) by lindbergh.monkeyblade.net (Postfix) with SMTP id 481B4273D for ; Tue, 6 Jun 2023 00:57:35 -0700 (PDT) Received: from localhost.localdomain (unknown [180.167.10.98]) by mail.nfschina.com (Maildata Gateway V2.8.8) with ESMTPA id DBF29180121FCD; Tue, 6 Jun 2023 15:55:28 +0800 (CST) X-MD-Sfrom: suhui@nfschina.com X-MD-SrcIP: 180.167.10.98 From: Su Hui To: Douglas Anderson , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter Cc: u.kleine-koenig@pengutronix.de, andersson@kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Su Hui Subject: [PATCH] drm/bridge: ti-sn65dsi86: Avoid possible buffer overflow Date: Tue, 6 Jun 2023 15:55:27 +0800 Message-Id: <20230606075527.155346-1-suhui@nfschina.com> X-Mailer: git-send-email 2.30.2 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" Smatch error:buffer overflow 'ti_sn_bridge_refclk_lut' 5 <=3D 5. Fixes: cea86c5bb442 ("drm/bridge: ti-sn65dsi86: Implement the pwm_chip") Signed-off-by: Su Hui --- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge= /ti-sn65dsi86.c index 7a748785c545..952aae4221e7 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -305,7 +305,8 @@ static void ti_sn_bridge_set_refclk_freq(struct ti_sn65= dsi86 *pdata) * The PWM refclk is based on the value written to SN_DPPLL_SRC_REG, * regardless of its actual sourcing. */ - pdata->pwm_refclk_freq =3D ti_sn_bridge_refclk_lut[i]; + if (i < refclk_lut_size) + pdata->pwm_refclk_freq =3D ti_sn_bridge_refclk_lut[i]; } =20 static void ti_sn65dsi86_enable_comms(struct ti_sn65dsi86 *pdata) --=20 2.30.2