* [PATCH 5.16 0134/1017] ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM
[not found] <20220405070354.155796697@linuxfoundation.org>
@ 2022-04-05 7:17 ` Greg Kroah-Hartman
2022-04-05 7:20 ` [PATCH 5.16 0308/1017] ASoC: max98927: add missing header file Greg Kroah-Hartman
1 sibling, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2022-04-05 7:17 UTC (permalink / raw)
To: linux-kernel
Cc: Pierre-Louis Bossart, alsa-devel, Kai Vehmanen, Ammar Faizi,
Greg Kroah-Hartman, Takashi Iwai, Keyon Jie, Liam Girdwood,
stable, Mark Brown, Ranjani Sridharan, Peter Ujfalusi,
Rander Wang, Daniel Baluta, sound-open-firmware
From: Ammar Faizi <ammarfaizi2@gnuweeb.org>
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@nxp.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: Keyon Jie <yang.jie@linux.intel.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Rander Wang <rander.wang@intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Takashi Iwai <tiwai@suse.com>
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 <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Link: https://lore.kernel.org/r/20220224185836.44907-1-ammarfaizi2@gnuweeb.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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
@@ -48,7 +48,7 @@ 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 */
@@ -59,22 +59,23 @@ 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);
}
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH 5.16 0308/1017] ASoC: max98927: add missing header file
[not found] <20220405070354.155796697@linuxfoundation.org>
2022-04-05 7:17 ` [PATCH 5.16 0134/1017] ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM Greg Kroah-Hartman
@ 2022-04-05 7:20 ` Greg Kroah-Hartman
1 sibling, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2022-04-05 7:20 UTC (permalink / raw)
To: linux-kernel
Cc: Sasha Levin, alsa-devel, kernel test robot, Greg Kroah-Hartman,
Randy Dunlap, Liam Girdwood, stable, Takashi Iwai, Mark Brown,
Alejandro Tafalla
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit bb45f689fa62110c263c86070bfcb9ecbb6e1e23 ]
Add a header file that provides the missing function prototypes
and macro to fix these build errors (seen on arch/alpha/):
../sound/soc/codecs/max98927.c: In function 'max98927_i2c_probe':
../sound/soc/codecs/max98927.c:902:19: error: implicit declaration of function 'devm_gpiod_get_optional'; did you mean 'devm_regulator_get_optional'? [-Werror=implicit-function-declaration]
902 | = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH);
| ^~~~~~~~~~~~~~~~~~~~~~~
../sound/soc/codecs/max98927.c:902:63: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function); did you mean 'GPIOF_INIT_HIGH'?
902 | = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH);
| ^~~~~~~~~~~~~~
../sound/soc/codecs/max98927.c:909:17: error: implicit declaration of function 'gpiod_set_value_cansleep'; did you mean 'gpio_set_value_cansleep'? [-Werror=implicit-function-declaration]
909 | gpiod_set_value_cansleep(max98927->reset_gpio, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 4d67dc1998f1 ("ASoC: max98927: Handle reset gpio when probing i2c")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Alejandro Tafalla <atafalla@dnyon.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20220129080259.19964-1-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/max98927.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index 5ba5f876eab8..fd84780bf689 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -16,6 +16,7 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/of_gpio.h>
#include <sound/tlv.h>
#include "max98927.h"
--
2.34.1
^ permalink raw reply related [flat|nested] 2+ messages in thread