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: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <liming....@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Shenglei Zhang <shenglei.zh...@intel.com> --- .../Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c index c1e8c5581a..e979b18f0f 100644 --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c @@ -222,10 +222,10 @@ MakeTable ( if (Len <= TableBits) { - for (Index = Start[Len]; Index < NextCode; Index++) { - if (Index >= MaxTableLength) { - return (UINT16) BAD_TABLE; - } + if (Start[Len] + NextCode > MaxTableLength) { + return (UINT16) BAD_TABLE; + } + for (Index = Start[Len]; Index < NextCode; Index++) { Table[Index] = Char; } -- 2.18.0.windows.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel