From: Christos Zoulas <christos@zoulas.com>
Date: Mon, 13 Aug 2018 12:59:05 +0000 (+0000)
Subject: Avoid read out of bounds (found by oss-fuzz)
X-Git-Tag: FILE5_35~49
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=473e039b48fd72660dd00f4b52a2880cc0dd5632;p=file

Avoid read out of bounds (found by oss-fuzz)
---

diff --git a/src/is_json.c b/src/is_json.c
index 059ba669..5d4e8b90 100644
--- a/src/is_json.c
+++ b/src/is_json.c
@@ -32,7 +32,7 @@
 #include "file.h"
 
 #ifndef lint
-FILE_RCSID("@(#)$File: is_json.c,v 1.5 2018/08/11 14:43:43 christos Exp $")
+FILE_RCSID("@(#)$File: is_json.c,v 1.6 2018/08/13 12:59:05 christos Exp $")
 #endif
 
 #include <string.h>
@@ -221,6 +221,8 @@ json_parse_object(const unsigned char **ucp, const unsigned char *ue,
 			DPRINTF("not json", uc, *ucp);
 			goto out;
 		}
+		if (uc == ue)
+			goto out;
 		switch (*uc++) {
 		case ',':
 			continue;