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-rw-r--r--core/fpdfapi/page/cpdf_streamparser.cpp6
-rw-r--r--core/fxcodec/codec/fx_codec.cpp3
-rw-r--r--core/fxcrt/cfx_readonlymemorystream.cpp3
3 files changed, 8 insertions, 4 deletions
diff --git a/core/fpdfapi/page/cpdf_streamparser.cpp b/core/fpdfapi/page/cpdf_streamparser.cpp
index 0d45ed0323..9533bb2a17 100644
--- a/core/fpdfapi/page/cpdf_streamparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamparser.cpp
@@ -177,7 +177,8 @@ std::unique_ptr<CPDF_Stream> CPDF_StreamParser::ReadInlineStream(
if (OrigSize > m_pBuf.size() - m_Pos)
OrigSize = m_pBuf.size() - m_Pos;
pData.reset(FX_Alloc(uint8_t, OrigSize));
- memcpy(pData.get(), &m_pBuf[m_Pos], OrigSize);
+ auto copy_span = m_pBuf.subspan(m_Pos, OrigSize);
+ memcpy(pData.get(), copy_span.data(), copy_span.size());
dwStreamSize = OrigSize;
m_Pos += OrigSize;
} else {
@@ -209,7 +210,8 @@ std::unique_ptr<CPDF_Stream> CPDF_StreamParser::ReadInlineStream(
}
m_Pos = dwSavePos;
pData.reset(FX_Alloc(uint8_t, dwStreamSize));
- memcpy(pData.get(), &m_pBuf[m_Pos], dwStreamSize);
+ auto copy_span = m_pBuf.subspan(m_Pos, dwStreamSize);
+ memcpy(pData.get(), copy_span.data(), copy_span.size());
m_Pos += dwStreamSize;
}
pDict->SetNewFor<CPDF_Number>("Length", static_cast<int>(dwStreamSize));
diff --git a/core/fxcodec/codec/fx_codec.cpp b/core/fxcodec/codec/fx_codec.cpp
index efae53908e..b93f5418f3 100644
--- a/core/fxcodec/codec/fx_codec.cpp
+++ b/core/fxcodec/codec/fx_codec.cpp
@@ -1642,7 +1642,8 @@ uint8_t* CCodec_RLScanlineDecoder::v_GetNextLine() {
copy_len = m_SrcBuf.size() - m_SrcOffset;
m_bEOD = true;
}
- memcpy(m_pScanline.get() + col_pos, &m_SrcBuf[m_SrcOffset], copy_len);
+ auto copy_span = m_SrcBuf.subspan(m_SrcOffset, copy_len);
+ memcpy(m_pScanline.get() + col_pos, copy_span.data(), copy_span.size());
col_pos += copy_len;
UpdateOperator((uint8_t)copy_len);
} else if (m_Operator > 128) {
diff --git a/core/fxcrt/cfx_readonlymemorystream.cpp b/core/fxcrt/cfx_readonlymemorystream.cpp
index 0a1a53a456..7b6a4c244d 100644
--- a/core/fxcrt/cfx_readonlymemorystream.cpp
+++ b/core/fxcrt/cfx_readonlymemorystream.cpp
@@ -29,6 +29,7 @@ bool CFX_ReadOnlyMemoryStream::ReadBlock(void* buffer,
if (!pos.IsValid() || pos.ValueOrDie() > m_span.size())
return false;
- memcpy(buffer, &m_span[offset], size);
+ auto copy_span = m_span.subspan(offset, size);
+ memcpy(buffer, copy_span.data(), copy_span.size());
return true;
}