This is a note to let you know that I've just added the patch titled
ASoC: rsnd: don't double free kctrl
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: asoc-rsnd-don-t-double-free-kctrl.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Tue Nov 28 10:56:34 CET 2017
From: Colin Ian King colin.king@canonical.com Date: Thu, 8 Dec 2016 13:05:43 +0000 Subject: ASoC: rsnd: don't double free kctrl
From: Colin Ian King colin.king@canonical.com
[ Upstream commit 0ea617a298dcdc2251b4e10f83ac3f3e627b66e3 ]
On an error, snd_ctl_add already free's kctrl, so calling snd_ctl_free_one to free it again leads to a double free error. Fix this by removing the extraneous snd_ctl_free_one call.
Issue found using static analysis with CoverityScan, CID 1372908
Signed-off-by: Colin Ian King colin.king@canonical.com Acked-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/sh/rcar/core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1049,10 +1049,8 @@ static int __rsnd_kctrl_new(struct rsnd_ return -ENOMEM;
ret = snd_ctl_add(card, kctrl); - if (ret < 0) { - snd_ctl_free_one(kctrl); + if (ret < 0) return ret; - }
cfg->update = update; cfg->card = card;
Patches currently in stable-queue which might be from colin.king@canonical.com are
queue-4.4/asoc-rsnd-don-t-double-free-kctrl.patch