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 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 00071C43217 for ; Sun, 3 Apr 2022 10:25:47 +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 D59E517B4; Sun, 3 Apr 2022 12:24:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D59E517B4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1648981545; bh=j/5tDEcr4uwpIHDqOnfXsy3VKAmLbLfALLScCp6XurE=; h=Subject:To:From:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=cUH9gA3Qeb+sobLmX8a50thHSQ5G1kCWxy08RAR7yZcUe5mOVucteJIEsvtBpQ70d pXZdR2sdQd46PZV2lnag4TXASh/AT8r4h1kPTb+Cx9Rhy/D4/br9N75Qc8PehxwO66 J9zFvJY+W/odozCH87boseItWFwJHuCNHSa9qQqY= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 1C917F80302; Sun, 3 Apr 2022 12:24:54 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 29FD5F80248; Sun, 3 Apr 2022 12:24:52 +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 52183F800E9; Sun, 3 Apr 2022 12:24:43 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 52183F800E9 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="mweQPTB8" 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 D972060FC7; Sun, 3 Apr 2022 10:24:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B325DC340ED; Sun, 3 Apr 2022 10:24:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1648981480; bh=j/5tDEcr4uwpIHDqOnfXsy3VKAmLbLfALLScCp6XurE=; h=Subject:To:Cc:From:Date:From; b=mweQPTB8KrVvBcWhgrdZbTEirSmF6NJ76iMZgPKOO/ohWieA6rf63YSd1VY4UOQMd 7Wz++av6VWWucZTiPyQIg9zi/HvEIqLeh+YNRUjoWpUOlCZbV812vOVzs8K9pigpG+ OZGh4bAJeEhRpLY5YMQKy8vWnPt/ok/sgD3aKLn4= Subject: Patch "ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM" has been added to the 5.4-stable tree To: alsa-devel@alsa-project.org, ammarfaizi2@gnuweeb.org, broonie@kernel.org, daniel.baluta@nxp.com, gregkh@linuxfoundation.org, kai.vehmanen@linux.intel.com, lgirdwood@gmail.com, perex@perex.cz, peter.ujfalusi@linux.intel.com, pierre-louis.bossart@linux.intel.com, rander.wang@intel.com, ranjani.sridharan@linux.intel.com, sound-open-firmware@alsa-project.org, tiwai@suse.com, yang.jie@linux.intel.com From: Date: Sun, 03 Apr 2022 12:24:37 +0200 Message-ID: <1648981477183201@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore Cc: stable-commits@vger.kernel.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" This is a note to let you know that I've just added the patch titled ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-sof-intel-fix-null-ptr-dereference-when-enomem.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9 Mon Sep 17 00:00:00 2001 From: Ammar Faizi Date: Fri, 25 Feb 2022 01:58:36 +0700 Subject: ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM 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; } Patches currently in stable-queue which might be from ammarfaizi2@gnuweeb.org are queue-5.4/asoc-sof-intel-fix-null-ptr-dereference-when-enomem.patch