From patchwork Thu Apr 14 13:11:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 12813578 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 938E0C433F5 for ; Thu, 14 Apr 2022 13:46:26 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A72E916B3; Thu, 14 Apr 2022 15:45:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A72E916B3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1649943984; bh=z2gKQDvjDAKZigd8ys86qyu4ItR5GIXfvt3KCuNW2lE=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=Me0SJO+r4nH6vSEjqpZAvRWX0sRT0DiGCW0uXAObMY0sZFqZJDmgXpB78Jz8zKqZj 00XHD0EnPp7ZQT44HNgtOMmYBBZ9og6HLDsP/h6A6t6GyEYWcildZWA1pgR1RRiRRW RtRtOyK28MmfwSjTaCjgASgbhoOlxRDwcYPAWsjA= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3C7E1F8012E; Thu, 14 Apr 2022 15:45:34 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0F848F80095; Thu, 14 Apr 2022 15:45:33 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 4B15CF80124; Thu, 14 Apr 2022 15:45:25 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 4B15CF80124 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="o2n76p6Q" 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 dfw.source.kernel.org (Postfix) with ESMTPS id 978BC61D70; Thu, 14 Apr 2022 13:45:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F2B1C385A9; Thu, 14 Apr 2022 13:45:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649943923; bh=z2gKQDvjDAKZigd8ys86qyu4ItR5GIXfvt3KCuNW2lE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o2n76p6QOZ1Mm3IB3gWLUXr8Exo6WRYSB1hqDg78B+n55+qDHry6g+TdL68HQeAoF Rj8snyjxv+Sck2U+TS3XO9mUNDEyentZl96zu3WPUpWfd84yuEl0p311fQQ9CE3sHY Krgr6Dixcc58V/WyD7PIpuzUQmb44yJk+YiCykxM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 5.4 330/475] ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM Date: Thu, 14 Apr 2022 15:11:55 +0200 Message-Id: <20220414110904.320644296@linuxfoundation.org> X-Mailer: git-send-email 2.35.2 In-Reply-To: <20220414110855.141582785@linuxfoundation.org> References: <20220414110855.141582785@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Cc: Pierre-Louis Bossart , alsa-devel@alsa-project.org, Kai Vehmanen , Ammar Faizi , Greg Kroah-Hartman , Takashi Iwai , Keyon Jie , Liam Girdwood , stable@vger.kernel.org, Mark Brown , Ranjani Sridharan , Peter Ujfalusi , Rander Wang , Daniel Baluta , sound-open-firmware@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Ammar Faizi commit b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9 upstream. Do not call snd_dma_free_pages() when snd_dma_alloc_pages() returns -ENOMEM because it leads to a NULL pointer dereference bug. The dmesg says: [ T1387] sof-audio-pci-intel-tgl 0000:00:1f.3: error: memory alloc failed: -12 [ T1387] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ T1387] #PF: supervisor read access in kernel mode [ T1387] #PF: error_code(0x0000) - not-present page [ T1387] PGD 0 P4D 0 [ T1387] Oops: 0000 [#1] PREEMPT SMP NOPTI [ T1387] CPU: 6 PID: 1387 Comm: alsa-sink-HDA A Tainted: G W 5.17.0-rc4-superb-owl-00055-g80d47f5de5e3 [ T1387] Hardware name: HP HP Laptop 14s-dq2xxx/87FD, BIOS F.15 09/15/2021 [ T1387] RIP: 0010:dma_free_noncontiguous+0x37/0x80 [ T1387] Code: [... snip ...] [ T1387] RSP: 0000:ffffc90002b87770 EFLAGS: 00010246 [ T1387] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ T1387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888101db30d0 [ T1387] RBP: 00000000fffffff4 R08: 0000000000000000 R09: 0000000000000000 [ T1387] R10: 0000000000000000 R11: ffffc90002b874d0 R12: 0000000000000001 [ T1387] R13: 0000000000058000 R14: ffff888105260c68 R15: ffff888105260828 [ T1387] FS: 00007f42e2ffd640(0000) GS:ffff888466b80000(0000) knlGS:0000000000000000 [ T1387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ T1387] CR2: 0000000000000000 CR3: 000000014acf0003 CR4: 0000000000770ee0 [ T1387] PKRU: 55555554 [ T1387] Call Trace: [ T1387] [ T1387] cl_stream_prepare+0x10a/0x120 [snd_sof_intel_hda_common 146addf995b9279ae7f509621078cccbe4f875e1] [... snip ...] [ T1387] Cc: Daniel Baluta Cc: Jaroslav Kysela Cc: Kai Vehmanen Cc: Keyon Jie Cc: Liam Girdwood Cc: Mark Brown Cc: Rander Wang Cc: Ranjani Sridharan Cc: Takashi Iwai Cc: sound-open-firmware@alsa-project.org Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org # v5.2+ Fixes: d16046ffa6de040bf580a64d5f4d0aa18258a854 ("ASoC: SOF: Intel: Add Intel specific HDA firmware loader") Link: https://lore.kernel.org/lkml/20220224145124.15985-1-ammarfaizi2@gnuweeb.org/ # v1 Link: https://lore.kernel.org/lkml/20220224180850.34592-1-ammarfaizi2@gnuweeb.org/ # v2 Link: https://lore.kernel.org/lkml/20220224182818.40301-1-ammarfaizi2@gnuweeb.org/ # v3 Reviewed-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Signed-off-by: Ammar Faizi Link: https://lore.kernel.org/r/20220224185836.44907-1-ammarfaizi2@gnuweeb.org Signed-off-by: Mark Brown [ammarfaizi2: Backport to Linux 5.4 LTS] Signed-off-by: Ammar Faizi Signed-off-by: Greg Kroah-Hartman --- sound/soc/sof/intel/hda-loader.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -50,7 +50,7 @@ static int cl_stream_prepare(struct snd_ ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, &pci->dev, size, dmab); if (ret < 0) { dev_err(sdev->dev, "error: memory alloc failed: %x\n", ret); - goto error; + goto out_put; } hstream->period_bytes = 0;/* initialize period_bytes */ @@ -60,16 +60,17 @@ static int cl_stream_prepare(struct snd_ ret = hda_dsp_stream_hw_params(sdev, dsp_stream, dmab, NULL); if (ret < 0) { dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret); - goto error; + goto out_free; } hda_dsp_stream_spib_config(sdev, dsp_stream, HDA_DSP_SPIB_ENABLE, size); return hstream->stream_tag; -error: - hda_dsp_stream_put(sdev, direction, hstream->stream_tag); +out_free: snd_dma_free_pages(dmab); +out_put: + hda_dsp_stream_put(sdev, direction, hstream->stream_tag); return ret; }