From 8d142ecff9af7d60728b8cfa9138e8623985c428 Mon Sep 17 00:00:00 2001
From: "NARUSE, Yui" <naruse@airemix.jp>
Date: Tue, 12 Apr 2022 19:54:07 +0900
Subject: Fix dtoa buffer overrun

---
 missing/dtoa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'missing')

diff --git a/missing/dtoa.c b/missing/dtoa.c
index a940eabd91..b7a8302875 100644
--- a/missing/dtoa.c
+++ b/missing/dtoa.c
@@ -1552,6 +1552,7 @@ break2:
 	    if (!*++s || !(s1 = strchr(hexdigit, *s))) goto ret0;
 	    if (*s == '0') {
 		while (*++s == '0');
+		if (!*s) goto ret;
 		s1 = strchr(hexdigit, *s);
 	    }
 	    if (s1 != NULL) {
@@ -1574,7 +1575,7 @@ break2:
 		for (; *s && (s1 = strchr(hexdigit, *s)); ++s) {
 		    adj += aadj * ((s1 - hexdigit) & 15);
 		    if ((aadj /= 16) == 0.0) {
-			while (strchr(hexdigit, *++s));
+			while (*++s && strchr(hexdigit, *s));
 			break;
 		    }
 		}
-- 
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