From 9f1e3e3e7273a4c0a94a287432bca0c44c6121c7 Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Fri, 17 Sep 2021 22:31:12 +0100
Subject: [PATCH] Credit to OSS-Fuzz:
 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38887 Fix quadratic
 loops.

---
 src/pentaxmn_int.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/pentaxmn_int.cpp b/src/pentaxmn_int.cpp
index 7c3c1e1360..f4cb3863f8 100644
--- a/src/pentaxmn_int.cpp
+++ b/src/pentaxmn_int.cpp
@@ -1014,8 +1014,8 @@ namespace Exiv2 {
     std::ostream& PentaxMakerNote::printVersion(std::ostream& os, const Value& value, const ExifData*)
     {
         std::string val = value.toString();
-        size_t i;
-        while ((i = val.find(' ')) != std::string::npos && i != val.length() - 1) {
+        size_t i = 0;
+        while ((i = val.find(' ', i)) != std::string::npos && i != val.length() - 1) {
             val.replace(i, 1, ".");
         }
         os << val;
@@ -1025,8 +1025,8 @@ namespace Exiv2 {
     std::ostream& PentaxMakerNote::printResolution(std::ostream& os, const Value& value, const ExifData*)
     {
         std::string val = value.toString();
-        size_t i;
-        while ((i = val.find(' ')) != std::string::npos && i != val.length() - 1) {
+        size_t i = 0;
+        while ((i = val.find(' ', i)) != std::string::npos && i != val.length() - 1) {
             val.replace(i, 1, "x");
         }
         os << val;