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=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 532FAC282C7 for ; Tue, 29 Jan 2019 11:51:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 148FB2086C for ; Tue, 29 Jan 2019 11:51:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762660; bh=TjZ24ny6NsEvDDKiQ3aauAMUg2qxM1x+mH0LFo9obb8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=tcIzgmhBlrKV4UJ5gm6K1Z47Dbgqc2pgUp2BDv3WDFBqwO1U4/cGN7cOUtZ41Q7rB 1150rX1ILUakty7VpqIzH7aBhbkDYk4CkGSLgrvN0XwMxsQiZNHTbYZFMY9o5lEXbi Xo3UJtCparmJWdBJpgYi1dEQ9KlDYPvGPC5QZOf8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731783AbfA2Lu6 (ORCPT ); Tue, 29 Jan 2019 06:50:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:42294 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731739AbfA2Lux (ORCPT ); Tue, 29 Jan 2019 06:50:53 -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 506492083B; Tue, 29 Jan 2019 11:50:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762652; bh=TjZ24ny6NsEvDDKiQ3aauAMUg2qxM1x+mH0LFo9obb8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y4yY7EqkWEbXdwE5ZOb3KwR/fpqMslK5aup2HZg6P0EIQsGmodalIhUSFG6SkEf4B goxkJOCBvYdT6AUhyJTpguFyetXMKPBY/JTFLZF39MvE/3Dr4Z7vL2osmiAW/5/ZdW jRDZgYvSbt/rq3uELANNTulrAUHv1fmDFp6469Y4= 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 4.9 12/44] ASoC: rt5514-spi: Fix potential NULL pointer dereference Date: Tue, 29 Jan 2019 12:36:07 +0100 Message-Id: <20190129113141.062080611@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190129113139.826927690@linuxfoundation.org> References: <20190129113139.826927690@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: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-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 @@ -253,6 +253,8 @@ static int rt5514_spi_pcm_probe(struct s rt5514_dsp = devm_kzalloc(platform->dev, sizeof(*rt5514_dsp), GFP_KERNEL); + if (!rt5514_dsp) + return -ENOMEM; rt5514_dsp->dev = &rt5514_spi->dev; mutex_init(&rt5514_dsp->dma_lock);