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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D4428C169C4 for ; Tue, 29 Jan 2019 12:08:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A52C320881 for ; Tue, 29 Jan 2019 12:08:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548763700; bh=Bv+4IJ9d8So1EZ8MXI4SEMWvjTA6UuanqhWsk1hlftM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=V7CEl7zSMHb+I1/eGzlKEco9Vmb6Y7d3KqyL17SAwvaPg++YRUNqY+rvKG8YL1rxL zkqlqWDqEtKZDwaOA6+GS6P6GmX0D0Ad5SwLjKt+dtMOdqrbkYEe46BGwg0cXSiRwo HCH9zNKxgnEisd2hBzRWNJrR3TPdcQi62hS7tUG0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729045AbfA2MIN (ORCPT ); Tue, 29 Jan 2019 07:08:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:56428 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729478AbfA2Ljj (ORCPT ); Tue, 29 Jan 2019 06:39:39 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B0F8420989; Tue, 29 Jan 2019 11:39:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548761979; bh=Bv+4IJ9d8So1EZ8MXI4SEMWvjTA6UuanqhWsk1hlftM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f4PTrmjHzFFWqofD/hdQTy2pWfOYNA81kHo2C9f38jMMiS8xvo5ltq8vEJMRW/zSr Aorq0IiPZng9+aHtalFK2NsrBOdYQbQRvuQ71TwPsw9DMNt5e2CptJVmzLheuI2p63 kOJ3M8+k1U8u5Bj5MbRCJnIgqDM+og9w5uJYtrbw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Gustavo A. R. Silva" , Mark Brown Subject: [PATCH 4.20 033/117] ASoC: rt5514-spi: Fix potential NULL pointer dereference Date: Tue, 29 Jan 2019 12:34:44 +0100 Message-Id: <20190129113209.282770984@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190129113207.477505932@linuxfoundation.org> References: <20190129113207.477505932@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.20-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gustavo A. R. Silva commit 060d0bf491874daece47053c4e1fb0489eb867d2 upstream. There is a potential NULL pointer dereference in case devm_kzalloc() fails and returns NULL. Fix this by adding a NULL check on rt5514_dsp. This issue was detected with the help of Coccinelle. Fixes: 6eebf35b0e4a ("ASoC: rt5514: add rt5514 SPI driver") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/rt5514-spi.c | 2 ++ 1 file changed, 2 insertions(+) --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -280,6 +280,8 @@ static int rt5514_spi_pcm_probe(struct s rt5514_dsp = devm_kzalloc(component->dev, sizeof(*rt5514_dsp), GFP_KERNEL); + if (!rt5514_dsp) + return -ENOMEM; rt5514_dsp->dev = &rt5514_spi->dev; mutex_init(&rt5514_dsp->dma_lock);