Describe the bug
We constructed a tx that will emit lots of fake NEP-17 transfer notifications. Plus, its balanceOf consumes lots of CPU resources. After sending that, all seed nodes stopped syncing.
Expected behavior
All nodes go well.
Screenshots
(Optional) Additional context
0xd1854ce611d57a1c613dbbd0172784c338666065f2b1cf20c4e4d7ad23a5d5cc
Tokentacker will filter all notifications and try to update NEP-17 balances for each address which can be exploited.
https://github.com/neo-project/neo-modules/blob/32aacc468ad43600817daabbec834e715017d962/src/TokensTracker/Trackers/NEP-17/Nep17Tracker.cs#L80-L92
https://github.com/neo-project/neo-modules/blob/32aacc468ad43600817daabbec834e715017d962/src/TokensTracker/Trackers/NEP-17/Nep17Tracker.cs#L103-L105
Describe the bug
We constructed a tx that will emit lots of fake NEP-17 transfer notifications. Plus, its
balanceOfconsumes lots of CPU resources. After sending that, all seed nodes stopped syncing.Expected behavior
All nodes go well.
Screenshots
(Optional) Additional context
0xd1854ce611d57a1c613dbbd0172784c338666065f2b1cf20c4e4d7ad23a5d5cc
Tokentacker will filter all notifications and try to update NEP-17 balances for each address which can be exploited.
https://github.com/neo-project/neo-modules/blob/32aacc468ad43600817daabbec834e715017d962/src/TokensTracker/Trackers/NEP-17/Nep17Tracker.cs#L80-L92
https://github.com/neo-project/neo-modules/blob/32aacc468ad43600817daabbec834e715017d962/src/TokensTracker/Trackers/NEP-17/Nep17Tracker.cs#L103-L105