This is a note to let you know that I've just added the patch titled
ASoC: core: Fix Null-point-dereference in fmt_single_name()
to the 5.10-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-core-fix-null-point-dereference-in-fmt_single_name.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 41daf6ba594d55f201c50280ebcd430590441da1 Mon Sep 17 00:00:00 2001
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Date: Mon, 24 May 2021 10:49:41 +0800
Subject: ASoC: core: Fix Null-point-dereference in fmt_single_name()
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
commit 41daf6ba594d55f201c50280ebcd430590441da1 upstream.
Check the return value of devm_kstrdup() in case of
Null-point-dereference.
Fixes: 45dd9943fce0 ("ASoC: core: remove artificial component and DAI name constraint")
Cc: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210524024941.159952-1-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/soc-core.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2231,6 +2231,8 @@ static char *fmt_single_name(struct devi
return NULL;
name = devm_kstrdup(dev, devname, GFP_KERNEL);
+ if (!name)
+ return NULL;
/* are we a "%s.%d" name (platform and SPI components) */
found = strstr(name, dev->driver->name);
Patches currently in stable-queue which might be from wangkefeng.wang@xxxxxxxxxx are
queue-5.10/asoc-core-fix-null-point-dereference-in-fmt_single_name.patch
