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[freetype2] master 17196b7: [truetype] Integer overflow.
From: |
Werner LEMBERG |
Subject: |
[freetype2] master 17196b7: [truetype] Integer overflow. |
Date: |
Sat, 5 Aug 2017 12:58:56 -0400 (EDT) |
branch: master
commit 17196b7c747cf8a7309efda54c99a89d456f0512
Author: Werner Lemberg <address@hidden>
Commit: Werner Lemberg <address@hidden>
[truetype] Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2868
* src/truetype/ttinterp.c (Ins_ALIGNRP): Use NEG_LONG.
---
ChangeLog | 10 ++++++++++
src/truetype/ttinterp.c | 2 +-
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/ChangeLog b/ChangeLog
index 30f18b7..987d573 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2017-06-27 Werner Lemberg <address@hidden>
+
+ [truetype] Integer overflow.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2868
+
+ * src/truetype/ttinterp.c (Ins_ALIGNRP): Use NEG_LONG.
+
2017-08-05 Werner Lemberg <address@hidden>
[base, truetype] New function `FT_Get_Var_Axis_Flags'.
diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c
index 8636d5e..bc20155 100644
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -6421,7 +6421,7 @@
distance = PROJECT( exc->zp1.cur + point,
exc->zp0.cur + exc->GS.rp0 );
- exc->func_move( exc, &exc->zp1, point, -distance );
+ exc->func_move( exc, &exc->zp1, point, NEG_LONG( distance ) );
}
exc->GS.loop--;
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