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check max RouterInfo size

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orignal
2024-09-18 08:38:29 -04:00
parent f20391d460
commit a723405fb0
2 changed files with 17 additions and 10 deletions
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6
libi2pd/SSU2Session.cpp
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@@ -2937,13 +2937,15 @@ namespace transport
i2p::data::GzipInflator inflator;
uint8_t uncompressed[i2p::data::MAX_RI_BUFFER_SIZE];
size_t uncompressedSize = inflator.Inflate (buf + 2, size - 2, uncompressed, i2p::data::MAX_RI_BUFFER_SIZE);
if (uncompressedSize && uncompressedSize < i2p::data::MAX_RI_BUFFER_SIZE)
if (uncompressedSize && uncompressedSize <= i2p::data::MAX_RI_BUFFER_SIZE)
ri = std::make_shared<i2p::data::RouterInfo>(uncompressed, uncompressedSize);
else
LogPrint (eLogInfo, "SSU2: RouterInfo decompression failed ", uncompressedSize);
}
else
else if (size <= i2p::data::MAX_RI_BUFFER_SIZE + 2)
ri = std::make_shared<i2p::data::RouterInfo>(buf + 2, size - 2);
else
LogPrint (eLogInfo, "SSU2: RouterInfo is too long ", size);
return ri;
}