From: Shenglei Zhang <shenglei.zh...@intel.com>
The boundary validation checking in MakeTable() performs on
every loop iteration. This could be improved by checking
just once before the loop.
https://bugzilla.tianocore.org/show_bug.cgi?id=1329
Cc: Bob Feng <bob.c.f...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Yonghong Zhu <yonghong....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Shenglei Zhang <shenglei.zh...@intel.com>
---
BaseTools/Source/C/TianoCompress/TianoCompress.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/BaseTools/Source/C/TianoCompress/TianoCompress.c
b/BaseTools/Source/C/TianoCompress/TianoCompress.c
index 29b11c597f..ae88074360 100644
--- a/BaseTools/Source/C/TianoCompress/TianoCompress.c
+++ b/BaseTools/Source/C/TianoCompress/TianoCompress.c
@@ -2281,10 +2281,11 @@ Returns:
if (Len <= TableBits) {
+ if (Start[Len] >= NextCode || NextCode > MaxTableLength){
+ return (UINT16) BAD_TABLE;
+ }
+
for (Index = Start[Len]; Index < NextCode; Index++) {
- if (Index >= MaxTableLength) {
- return (UINT16) BAD_TABLE;
- }
Table[Index] = Char;
}
--
2.18.0.windows.1
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