From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 85a7555575a0e48f9b73db310d0d762a08a46d63 ]
The error handling frees "ctl" but it's still on the "dsp->ctl_list" list so that could result in a use after free. Remove it from the list before returning.
Fixes: 2323736dca72 ("ASoC: wm_adsp: Add basic support for rev 1 firmware file format") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Acked-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://lore.kernel.org/r/X9B0keV/02wrx9Xs@mwanda Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/wm_adsp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 158ce68bc9bf3..1516252aa0a53 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -1391,7 +1391,7 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL); if (!ctl_work) { ret = -ENOMEM; - goto err_ctl_cache; + goto err_list_del; }
ctl_work->dsp = dsp; @@ -1401,7 +1401,8 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
return 0;
-err_ctl_cache: +err_list_del: + list_del(&ctl->list); kfree(ctl->cache); err_ctl_name: kfree(ctl->name);