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Version 0.17.6

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- corrected extended firmware volume header handling
- corrected a rare crash on trying to decompress EFI11-compressed sections with TianoDecompress routine
This commit is contained in:
Nikolaj Schlej 2014-04-09 18:29:12 +02:00
parent b3c9466f58
commit 7b2976d92c
2 changed files with 24 additions and 5 deletions
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14
Tiano/EfiTianoDecompress.c
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@ -255,10 +255,14 @@ for (Char = 0; Char < NumOfChar; Char++) {
NextCode = (UINT16) (Start[Len] + Weight[Len]);
if (Len <= TableBits) {
if (Len <= TableBits) {
for (Index = Start[Len]; Index < NextCode; Index++) {
Table[Index] = Char;
// Check to prevent possible heap corruption
if (Index >= (UINT16) (1U << TableBits))
return (UINT16)BAD_TABLE;
Table[Index] = Char;
}
} else {
@ -643,7 +647,11 @@ for (;;) {
BytesRemain = CharC;
DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1;
if (DataIdx >= Sd->mOrigSize) {
Sd->mBadTableFlag = 1;
return;
}
BytesRemain--;
while ((INT16) (BytesRemain) >= 0) {
Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++];