[poppler] fofi/FoFiType1.cc

[Albert Astals Cid]

 fofi/FoFiType1.cc |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

New commits:
commit 18f376c0dff184851b3ee4c05c40b4ee2c21da8c
Author: Albert Astals Cid <aacid at kde.org>
Date:   Sun May 27 09:29:49 2018 +0200

    FoFiType1::parse: Fix reading past font length
    
    fixes oss-fuzz/8545

diff --git a/fofi/FoFiType1.cc b/fofi/FoFiType1.cc
index ae9dfc4d..b38c2b4c 100644
--- a/fofi/FoFiType1.cc
+++ b/fofi/FoFiType1.cc
@@ -229,8 +229,10 @@ void FoFiType1::parse() {
     if (!name &&
 	(line + 9 <= (char*)file + len) &&
 	!strncmp(line, "/FontName", 9)) {
-      strncpy(buf, line, 255);
-      buf[255] = '\0';
+      const auto availableFile = (char*)file + len - line;
+      const int lineLen = availableFile < 255 ? availableFile : 255;
+      strncpy(buf, line, lineLen);
+      buf[lineLen] = '\0';
       if ((p = strchr(buf+9, '/')) &&
 	  (p = strtok_r(p+1, " \t\n\r", &tokptr))) {
 	name = copyString(p);