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Message-Id: <20220402163226.12209-1-ammarfaizi2@gnuweeb.org>
Date: Sat, 2 Apr 2022 23:32:26 +0700
From: Ammar Faizi <ammarfaizi2@...weeb.org>
To: stable@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Ammar Faizi <ammarfaizi2@...weeb.org>,
Daniel Baluta <daniel.baluta@....com>,
Jaroslav Kysela <perex@...ex.cz>,
Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
Keyon Jie <yang.jie@...ux.intel.com>,
Liam Girdwood <lgirdwood@...il.com>,
Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
Rander Wang <rander.wang@...el.com>,
Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
Takashi Iwai <tiwai@...e.com>,
sound-open-firmware@...a-project.org, alsa-devel@...a-project.org,
linux-kernel@...r.kernel.org, gwml@...r.gnuweeb.org,
Mark Brown <broonie@...nel.org>
Subject: [PATCH linux-5.10.y] ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM
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] <TASK>
[ T1387] cl_stream_prepare+0x10a/0x120 [snd_sof_intel_hda_common 146addf995b9279ae7f509621078cccbe4f875e1]
[... snip ...]
[ T1387] </TASK>
Cc: Daniel Baluta <daniel.baluta@....com>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Kai Vehmanen <kai.vehmanen@...ux.intel.com>
Cc: Keyon Jie <yang.jie@...ux.intel.com>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Rander Wang <rander.wang@...el.com>
Cc: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: sound-open-firmware@...a-project.org
Cc: alsa-devel@...a-project.org
Cc: linux-kernel@...r.kernel.org
Cc: stable@...r.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 <peter.ujfalusi@...ux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@...weeb.org>
Link: https://lore.kernel.org/r/20220224185836.44907-1-ammarfaizi2@gnuweeb.org
Signed-off-by: Mark Brown <broonie@...nel.org>
[ammarfaizi2: Backport to Linux 5.10 LTS]
Signed-off-by: Ammar Faizi <ammarfaizi2@...weeb.org>
---
sound/soc/sof/intel/hda-loader.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c
index 2707a16c6a4d..347636a80b48 100644
--- 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_prepare(struct snd_sof_dev *sdev, unsig
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 */
@@ -58,22 +58,23 @@ static struct hdac_ext_stream *cl_stream_prepare(struct snd_sof_dev *sdev, unsig
ret = hda_dsp_iccmax_stream_hw_params(sdev, dsp_stream, dmab, NULL);
if (ret < 0) {
dev_err(sdev->dev, "error: iccmax stream prepare failed: %x\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: %x\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);
}
base-commit: d9c5818a0bc09e4cc9fe663edb69e4d6cdae4f70
--
2.32.0
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