Commit 59eb9f8cfe7d1df379a2318316d1f04f80fba54a
2010-10-12T07:49:17
Fix Savannah bug #31310. * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against invalid `runcnt' values.
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diff --git a/ChangeLog b/ChangeLog
index c4f2132..fb8085e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-10-12 Werner Lemberg <wl@gnu.org>
+
+ Fix Savannah bug #31310.
+
+ * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against
+ invalid `runcnt' values.
+
2010-10-08 Chris Liddell <chris.liddell@artifex.com>
Fix Savannah bug #31275.
diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c
index 653d9d5..47bb9fc 100644
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@@ -130,7 +130,7 @@
FT_Int j;
FT_Int first;
FT_Memory memory = stream->memory;
- FT_Error error = TT_Err_Ok;
+ FT_Error error = TT_Err_Ok;
FT_UNUSED( error );
@@ -154,7 +154,7 @@
runcnt = runcnt & GX_PT_POINT_RUN_COUNT_MASK;
first = points[i++] = FT_GET_USHORT();
- if ( runcnt < 1 )
+ if ( runcnt < 1 || i + runcnt >= n )
goto Exit;
/* first point not included in runcount */
@@ -165,7 +165,7 @@
{
first = points[i++] = FT_GET_BYTE();
- if ( runcnt < 1 )
+ if ( runcnt < 1 || i + runcnt >= n )
goto Exit;
for ( j = 0; j < runcnt; ++j )