diff --git a/msm/sde/sde_connector.c b/msm/sde/sde_connector.c
index 844d2b859016..9900ce8c56f2 100644
--- a/msm/sde/sde_connector.c
+++ b/msm/sde/sde_connector.c
@@ -1698,6 +1698,7 @@ static ssize_t _sde_debugfs_conn_cmd_tx_sts_read(struct file *file,
 		return 0;
 	}
 
+	blen = min_t(size_t, MAX_CMD_PAYLOAD_SIZE, count);
 	if (copy_to_user(buf, buffer, blen)) {
 		SDE_ERROR("copy to user buffer failed\n");
 		return -EFAULT;
diff --git a/msm/sde_rsc.c b/msm/sde_rsc.c
index 0a706219168d..79e385c0a22f 100644
--- a/msm/sde_rsc.c
+++ b/msm/sde_rsc.c
@@ -1102,6 +1102,7 @@ end:
 	if (blen <= 0)
 		return 0;
 
+	blen = min_t(size_t, MAX_BUFFER_SIZE, count);
 	if (copy_to_user(buf, buffer, blen))
 		return -EFAULT;
 
@@ -1195,6 +1196,7 @@ end:
 	if (blen <= 0)
 		return 0;
 
+	blen = min_t(size_t, MAX_BUFFER_SIZE, count);
 	if (copy_to_user(buf, buffer, blen))
 		return -EFAULT;