[HarfBuzz] harfbuzz-ng: Branch 'master'

[Behdad Esfahbod]

 src/hb-open-type-private.hh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

New commits:
commit 4f801bd6586defdbf70162e0c7f8968d2b476df2
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Wed Jul 21 16:37:01 2010 -0400

    Mozilla bug 580233 - check for zero-length record in hb sanitizer.
    
    Patch / report by Jonathan Kew.

diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index 34d6cb0..cde6414 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -229,7 +229,7 @@ struct hb_sanitize_context_t
   inline bool check_array (const void *base, unsigned int record_size, unsigned int len) const
   {
     const char *p = (const char *) base;
-    bool overflows = len >= ((unsigned int) -1) / record_size;
+    bool overflows = record_size > 0 && len >= ((unsigned int) -1) / record_size;
 
     if (HB_DEBUG_SANITIZE && (int) this->debug_depth < (int) HB_DEBUG_SANITIZE)
       fprintf (stderr, "SANITIZE(%p) %-*d-> array [%p..%p] (%d*%d=%ld bytes) in [%p..%p] -> %s\n", \