core/fxcodec/jbig2/JBig2_SddProc.cpp - Issue 2242363002: [M53] Bound total pixels in JBig2 images to avoid overflows later.

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Unified Diff: core/fxcodec/jbig2/JBig2_SddProc.cpp

Issue 2242363002: [M53] Bound total pixels in JBig2 images to avoid overflows later. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@2785

Patch Set: Created 4 years, 4 months ago

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Index: core/fxcodec/jbig2/JBig2_SddProc.cpp

diff --git a/core/fxcodec/jbig2/JBig2_SddProc.cpp b/core/fxcodec/jbig2/JBig2_SddProc.cpp

index 9ab6cb8a2e1a2e480cde103da1f69c065d3480df..c6adfce784d430a3f9ec2243db4b4995728ef4a9 100644

--- a/core/fxcodec/jbig2/JBig2_SddProc.cpp

+++ b/core/fxcodec/jbig2/JBig2_SddProc.cpp

@@ -523,7 +523,7 @@ CJBig2_SymbolDict* CJBig2_SDDProc::decode_Huffman(

if (pStream->getByteLeft() >= stride * HCHEIGHT) {

BHC = new CJBig2_Image(TOTWIDTH, HCHEIGHT);

for (I = 0; I < HCHEIGHT; I++) {

- JBIG2_memcpy(BHC->m_pData + I * BHC->m_nStride,

+ JBIG2_memcpy(BHC->m_pData + I * BHC->stride(),

pStream->getPointer(), stride);

pStream->offset(stride);

}

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