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fixing potential overflow problem in KTX2 header parser

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This commit is contained in:
Richard Geldreich
2026-02-28 22:11:21 -05:00
parent b71d417e18
commit 58e3afbaba
1 changed files with 2 additions and 2 deletions
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4
transcoder/basisu_transcoder.cpp
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@@ -19606,7 +19606,7 @@ namespace basist
return false;
}
if (((m_header.m_dfd_byte_offset + m_header.m_dfd_byte_length) > m_data_size) || (m_header.m_dfd_byte_offset < sizeof(ktx2_header)))
if (((m_header.m_dfd_byte_offset.get_uint64() + m_header.m_dfd_byte_length.get_uint64()) > m_data_size) || (m_header.m_dfd_byte_offset < sizeof(ktx2_header)))
{
BASISU_DEVEL_ERROR("ktx2_transcoder::init: Invalid DFD offset and/or length\n");
return false;
@@ -20627,7 +20627,7 @@ namespace basist
return false;
}
if ((m_header.m_kvd_byte_offset + m_header.m_kvd_byte_length) > m_data_size)
if ((m_header.m_kvd_byte_offset.get_uint64() + m_header.m_kvd_byte_length.get_uint64()) > m_data_size)
{
BASISU_DEVEL_ERROR("ktx2_transcoder::read_key_values: Invalid KVD byte offset and/or length\n");
return false;