From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 10 May 2019 18:18:12 +0000 (-0400)
Subject: libext2fs: add missing check for utf8lookup()'s return value
X-Git-Tag: v1.45.1~5
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=03b04dbca713ae2acf5ffd8d51146dc7eb60ac9a;p=tools%2Fe2fsprogs.git

libext2fs: add missing check for utf8lookup()'s return value

Fixes-Coverity-Bug: 1442630
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---

diff --git a/lib/ext2fs/nls_utf8.c b/lib/ext2fs/nls_utf8.c
index 4214809..e4c4e7a 100644
--- a/lib/ext2fs/nls_utf8.c
+++ b/lib/ext2fs/nls_utf8.c
@@ -789,6 +789,8 @@ static int utf8byte(struct utf8cursor *u8c)
 			}
 
 			leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
+			if (!leaf)
+				return -1;
 			ccc = LEAF_CCC(leaf);
 		}