graphprotocol / graphprotocol/graph-node
out of bounds memory access wasm backtrace
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Description
Bug report
Deployed a local subgraph using graph-node v0.30.0 and got into this issue :
#4317 same issue but this is on mainnet
Did you look into this @tilacog
subgraph git
https://github.com/Amxx/subgraphs/tree/master/subgraphs/common
Relevant log output
wasm trap: out of bounds memory access
wasm backtrace:
0: 0x1d42 - <unknown>!~lib/util/memory/memcpy
1: 0x1e8b - <unknown>!~lib/memory/memory.copy
2: 0x36e2 - <unknown>!~lib/string/String#replaceAll
3: 0x387e - <unknown>!../node_modules/@openzeppelin/subgraphs/src/fetch/erc1155/replaceURI
4: 0x3c3e - <unknown>!../node_modules/@openzeppelin/subgraphs/src/fetch/erc1155/fetchERC1155Token
5: 0x3db3 - <unknown>!../node_modules/@openzeppelin/subgraphs/src/datasources/erc1155/registerTransfer
6: 0x4843 - <unknown>!../node_modules/@openzeppelin/subgraphs/src/datasources/erc1155/handleTransferBatch
in handler handleTransferBatch at block #16899351 (b1e020fd883a5a65f091fe52c275fcdcde1fabbb1a6b48a33bcd941e2e8ade19)
IPFS hash
No response
Subgraph name or link to explorer
Amxx subgraphs ERC-721 ERC-1155
Some information to help us out
- Tick this box if this bug is caused by a regression found in the latest release.
- Tick this box if this bug is specific to the hosted service.
- I have searched the issue tracker to make sure this issue is not a duplicate.
OS information
Linux
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the wasm backtrace for handleTransferBatch at block #16899351, following replaceURI, fetchERC1155Token, and registerTransfer in the referenced OpenZeppelin subgraph code. Reproduce the out-of-bounds memory access using the linked Amxx subgraph if possible; done means the handler no longer triggers this trap and the relevant behavior is covered by a regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- wasm
- Domain
- blockchain
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100