This is a note to let you know that I've just added the patch titled
ASoC: imx-audmix: Add NULL check in imx_audmix_probe
to the 6.12-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-imx-audmix-add-null-check-in-imx_audmix_probe.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bdc3094c3147f1ef2ca5d2a333c1cd9ddf516cf6
Author: Charles Han <hanchunchao@xxxxxxxxxx>
Date: Mon Nov 18 16:45:53 2024 +0800
ASoC: imx-audmix: Add NULL check in imx_audmix_probe
[ Upstream commit e038f43edaf0083f6aa7c9415d86cf28dfd152f9 ]
devm_kasprintf() can return a NULL pointer on failure,but this
returned value in imx_audmix_probe() is not checked.
Add NULL check in imx_audmix_probe(), to handle kernel NULL
pointer dereference error.
Fixes: 05d996e11348 ("ASoC: imx-audmix: Split capture device for audmix")
Signed-off-by: Charles Han <hanchunchao@xxxxxxxxxx>
Link: https://patch.msgid.link/20241118084553.4195-1-hanchunchao@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c
index 6fbcf33fd0dea..8e7b75cf64db4 100644
--- a/sound/soc/fsl/imx-audmix.c
+++ b/sound/soc/fsl/imx-audmix.c
@@ -275,6 +275,9 @@ static int imx_audmix_probe(struct platform_device *pdev)
/* Add AUDMIX Backend */
be_name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
"audmix-%d", i);
+ if (!be_name)
+ return -ENOMEM;
+
priv->dai[num_dai + i].cpus = &dlc[1];
priv->dai[num_dai + i].codecs = &snd_soc_dummy_dlc;
