tree 62283d8c88989180e8e971efe457a8b55afa16a0
parent a2195644d89812e5b157ce7bac35543e06db05e3
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1595008466 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1595008466 -0300

Fixed bug: 'luaD_callnoyield' called twice in a row

In luaD_callnoyield, when there is a possible stack overflow, it
zeros the number of CallInfos to force a check when calling the
function. However, if the "function" is not a function, the code will
raise an error before checking the stack. Then, the error handling calls
luaD_callnoyield again and nCcalls is decremented again, crossing the
stack redzone without raising an error. (This loop can only happens
once, because the error handler must be a function.  But once is enough
to cross the redzone.)