commit 46fa9c1116d808cc012275d8f8bf5d5b0dfb9c56
author Linux Build Service Account <lnxbuild@localhost> Tue Jul 02 20:56:41 2019 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue Jul 02 20:56:41 2019 -0700
tree d9391bac95f4668be4596d5cbae7e07f1614f961
parent 8f9f0424745034e865a5d3ecb2bd9107ca577aee
parent 6c6884d8740fec96c6a72ebf60ac005978deb7a7

Merge "asoc: Check backend index to apply channel map" into audio-drivers.lnx.2.0

asoc/msm-pcm-routing-v2.c

diff --git a/asoc/msm-pcm-routing-v2.c b/asoc/msm-pcm-routing-v2.c
index bab28d1..18d805e 100644
--- a/asoc/msm-pcm-routing-v2.c
+++ b/asoc/msm-pcm-routing-v2.c
@@ -17463,6 +17463,12 @@
 	uint32_t be_idx = ucontrol->value.integer.value[0];
 	int i;
 
+	if (be_idx < 0 || be_idx >= MSM_BACKEND_DAI_MAX) {
+		pr_err("%s: Invalid Backend ID %d\n",
+			__func__, be_idx);
+		return -EINVAL;
+	}
+
 	for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++) {
 		channel_map[i] = (char)(ucontrol->value.integer.value[i + 1]);
 		if (channel_map[i] > PCM_MAX_CHMAP_ID) {