Memory leak in host calls

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
cpp, wasm
Domain
backend

Research direction

Start by tracing validate_ptr and its signal-handler siglongjmp path, then inspect aligned_array_wrapper lifetime handling; the issue names no file or test. Done means the out-of-bounds host-call path no longer bypasses cleanup, with a regression test covering it.

Written by the indexing model from the issue text.

Description

validate_ptr will siglongjmp from the signal handler if the pointer is out of bounds. This will bypass any destructors including those of aligned_array_wrapper. No intrinsics in nodeos can trigger this bug.

Dominant language
C++
Stars
198
Forks
62
PR merge metrics
No merged PRs in 30d

Getting set up

First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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