Fix bug #7446 with overrunning input buffer in ebrowse.

 ebrowse.c (yylex): If end of input buffer encountered while
 searching for a newline after "//", return YYEOF.

2 files changed, 10 insertions, 0 deletions

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index ba98132521d..0f518445a45 100644
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,3 +1,8 @@
+2010-11-27  Joe Matarazzo  <joe.matarazzo@gmail.com>  (tiny change)
+
+        * ebrowse.c (yylex): If end of input buffer encountered while
+        searching for a newline after "//", return YYEOF.  (Bug#7446)
+
 2010-11-10  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
 
         * emacsclient.c (set_local_socket) [DARWIN_OS]: Add fall-back
diff --git a/lib-src/ebrowse.c b/lib-src/ebrowse.c
index b51b4aa6965..67c9637daba 100644
--- a/lib-src/ebrowse.c
+++ b/lib-src/ebrowse.c
@@ -1784,6 +1784,11 @@ yylex ()
             case '/':
               while (GET (c) && c != '\n')
                 ;
+              /* Don't try to read past the end of the input buffer if
+                 the file ends in a C++ comment without a newline.  */
+              if (c == 0)
+                return YYEOF;
+
               INCREMENT_LINENO;
               break;