1 files changed, 2 insertions, 0 deletions

diff --git a/fs/unicode/utf8-norm.c b/fs/unicode/utf8-norm.c
index 20d440c3f2db..801ed6d2ea37 100644
--- a/fs/unicode/utf8-norm.c
+++ b/fs/unicode/utf8-norm.c
@@ -714,6 +714,8 @@ int utf8byte(struct utf8cursor *u8c)
                         }
 
                         leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
+                        if (!leaf)
+                                return -1;
                         ccc = LEAF_CCC(leaf);
                 }