The problem was originally reported in https://github.com/bitcoin/bitcoin/issues/22450#issuecomment-880629375. This is a dedicated issue to track it independently because it is a different problem than the one reported in #22450 OP/description.

```
fuzz: addrman.cpp:149: void CAddrMan::SwapRandom(unsigned int, unsigned int): Assertion `nRndPos1 < vRandom.size() && nRndPos2 < vRandom.size()' failed.
```

To reproduce:
```sh
FUZZ=addrman_deserialize ./src/test/fuzz/fuzz /tmp/crash-ef7d4a4f940b8fdb4999f6a92969260cf8e1405f.log
```
[crash-ef7d4a4f940b8fdb4999f6a92969260cf8e1405f.log](https://github.com/bitcoin/bitcoin/files/6830072/crash-ef7d4a4f940b8fdb4999f6a92969260cf8e1405f.log)

{
    for (int bucket = 0; bucket < ADDRMAN_NEW_BUCKET_COUNT; ++bucket) {
        for (int i = 0; i < ADDRMAN_BUCKET_SIZE; ++i) {
            const auto id = vvNew[bucket][i];
            if (id == -1) {
                continue;
            }
            auto it = mapInfo.find(id);
            if (it == mapInfo.end()) {
                return;
            }
            auto& addr_info = it->second;
            if (!addr_info.IsI2P() || addr_info.GetPort() == I2P_SAM31_PORT) {
                continue;
            }
            auto addr_info_newport = addr_info;
            
            
            addr_info_newport.port = I2P_SAM31_PORT;