Second stack overflow luaO_pushvfstring

[Yongheng Chen <changochen1@...>]

Hi,

 

It seems that the latest commit haven’t completely fix the bug. Here’s the POC:

function errfunc()

    return pcall ^ xpcall(setmetatable({}, {}), errfunc)

end

coroutine.wrap(function() print(xpcall(test, errfunc)) end)()

 

 

Tested on Ubuntu, lua git hash: e1d8770f12542d34a3e32b825c95b93f8a341ee1

 

 

Best,

Yongheng

 

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