This is a note to let you know that I've just added the patch titled
ALSA: jack: Check the return value of kstrdup()
to the 5.15-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:
alsa-jack-check-the-return-value-of-kstrdup.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c01c1db1dc632edafb0dff32d40daf4f9c1a4e19 Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx>
Date: Mon, 13 Dec 2021 15:39:31 +0800
Subject: ALSA: jack: Check the return value of kstrdup()
From: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx>
commit c01c1db1dc632edafb0dff32d40daf4f9c1a4e19 upstream.
kstrdup() can return NULL, it is better to check the return value of it.
Signed-off-by: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/tencent_094816F3522E0DC704056C789352EBBF0606@xxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/core/jack.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -509,6 +509,10 @@ int snd_jack_new(struct snd_card *card,
return -ENOMEM;
jack->id = kstrdup(id, GFP_KERNEL);
+ if (jack->id == NULL) {
+ kfree(jack);
+ return -ENOMEM;
+ }
/* don't creat input device for phantom jack */
if (!phantom_jack) {
Patches currently in stable-queue which might be from xkernel.wang@xxxxxxxxxxx are
queue-5.15/alsa-jack-check-the-return-value-of-kstrdup.patch
