Fix integer overflow in header corruption check.

This commit is contained in:
Eli Kobrin 2022-05-20 16:30:15 +03:00
parent 76b3a87285
commit a9d7f80cc6

View File

@ -723,7 +723,7 @@ static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip, mz_uint flag
if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1)))
return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
if (cdir_size < pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
if (cdir_size < (mz_uint64)pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size)