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SCUMM: Fix OOB access in CharsetRendererPC::drawBits1Kor()

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This commit is contained in:
wonst719
2020-11-15 17:33:49 +09:00
parent 85f2e54423
commit 7cfd3feec6
1 changed files with 2 additions and 2 deletions
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engines/scumm/charset.cpp
+2 -2
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@@ -785,10 +785,10 @@ void CharsetRendererPC::drawBits1Kor(Graphics::Surface &dest, int x1, int y1, co
dst = origDst;
for (y = 0; y < height && y + drawTop + offsetY[i] < dest.h; y++) {
for (x = 0; x < width && x + offsetY[i] < dest.w; x++) {
for (x = 0; x < width && x + x1 + offsetX[i] < dest.w; x++) {
if ((x % 8) == 0)
bits = *src++;
if ((bits & revBitMask(x % 8)) && y + drawTop >= 0) {
if ((bits & revBitMask(x % 8)) && y + drawTop + offsetY[i] >= 0 && x + x1 + offsetX[i] >= 0) {
if (_enableShadow) {
*(dst + 1) = _shadowColor;
*(dst + dest.pitch) = _shadowColor;