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authorDan Carpenter <dan.carpenter@oracle.com>2020-12-09 09:54:09 +0300
committerMark Brown <broonie@kernel.org>2020-12-11 16:21:35 +0300
commit85a7555575a0e48f9b73db310d0d762a08a46d63 (patch)
tree7f29aa1ff3e7b51a8058cd570fb785c6e769b245 /sound
parent718c406e1ffaca4eac987b957bbb36ce1090797a (diff)
downloadlinux-85a7555575a0e48f9b73db310d0d762a08a46d63.tar.xz
ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wm_adsp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index e61d00486c65..dec8716aa8ef 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1519,7 +1519,7 @@ 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;
@@ -1529,7 +1529,8 @@ 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_subname:
kfree(ctl->subname);