diff --git a/fs/proc/bootconfig.c b/fs/proc/bootconfig.c
index 6d8d4bf2083773d097ec1fbbf1b1abe34721a731..2e244ada1f970b40dfc11417e5fd43579074d42f 100644
--- a/fs/proc/bootconfig.c
+++ b/fs/proc/bootconfig.c
@@ -32,6 +32,8 @@ static int __init copy_xbc_key_value_list(char *dst, size_t size)
 	int ret = 0;
 
 	key = kzalloc(XBC_KEYLEN_MAX, GFP_KERNEL);
+	if (!key)
+		return -ENOMEM;
 
 	xbc_for_each_key_value(leaf, val) {
 		ret = xbc_node_compose_key(leaf, key, XBC_KEYLEN_MAX);