using hongfuzz to fuzz luajit2.1.0-beta3,there are some crashes
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- Dominant language
- C
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Description
(1)lj_str_original_hash()function has READ memory access
(2)lj_alloc_free() function has READ memory access
(3)bcread_block()function has stack-overflow
all seed lua file see attachment.
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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 by examining the three attached seed archives and reproducing them with hongfuzz against LuaJIT 2.1.0-beta3. Investigate the reported crashes in lj_str_original_hash(), lj_alloc_free(), and bcread_block(). Done means the three reported memory-access or stack-overflow crashes no longer occur.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, lua
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100