From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=-4.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from gnuweeb.org by gnuweeb.org with LMTP id UJ6LHf01SGIHSRIALGQddQ (envelope-from ) for ; Sat, 02 Apr 2022 11:39:41 +0000 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gnuweeb.org (Postfix) with ESMTPS id 514257E35D for ; Sat, 2 Apr 2022 11:39:41 +0000 (UTC) Authentication-Results: gnuweeb.org; dkim=pass (1024-bit key; unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=0AHFLFDU; dkim-atps=neutral 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 A71E760FF5; Sat, 2 Apr 2022 11:39:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B8D53C340EC; Sat, 2 Apr 2022 11:39:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1648899580; bh=DyfhQdwciYl2eXyXFmZNDhV7bU6Locc+4Q9k8v+Sl3g=; h=Subject:To:Cc:From:Date:From; b=0AHFLFDUC/icxfDyIezwnB3uDKAlAYrunY8gVSSpWrqMtIE298srywyzQttENnMxj FHSSYay97aLamAfM1LdKT0O9GAwQ04X3BUMfhC2OoPo8PT7wCR+gavVjr8Rx3toG4j rvmLZCvMzGj1drlivK7kyT+CjIESfuH2Bf1pAXYY= Subject: Patch "ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM" has been added to the 5.17-stable tree To: gwml@vger.gnuweeb.org,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 Cc: From: Date: Sat, 02 Apr 2022 13:38:52 +0200 Message-ID: <1648899532128136@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 List-Id: 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 5.17-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-5.17 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 Signed-off-by: Greg Kroah-Hartman --- sound/soc/sof/intel/hda-loader.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -47,7 +47,7 @@ static struct hdac_ext_stream *cl_stream 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: %d\n", ret); - goto error; + goto out_put; } hstream->period_bytes = 0;/* initialize period_bytes */ @@ -58,22 +58,23 @@ static struct hdac_ext_stream *cl_stream ret = hda_dsp_iccmax_stream_hw_params(sdev, dsp_stream, dmab, NULL); if (ret < 0) { dev_err(sdev->dev, "error: iccmax stream prepare failed: %d\n", ret); - goto error; + goto out_free; } } else { ret = hda_dsp_stream_hw_params(sdev, dsp_stream, dmab, NULL); if (ret < 0) { dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret); - goto error; + goto out_free; } hda_dsp_stream_spib_config(sdev, dsp_stream, HDA_DSP_SPIB_ENABLE, size); } return dsp_stream; -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 ERR_PTR(ret); } Patches currently in stable-queue which might be from ammarfaizi2@gnuweeb.org are queue-5.17/asoc-sof-intel-fix-null-ptr-dereference-when-enomem.patch