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>>>>> "Roberto" == Roberto Ierusalimschy <> writes:

 >> We found a heap use after free in lua_checkstack. Here’s the POC:
 >> Lua version 5.4.0, git hash 34affe7a63fc5d842580a9f23616d057e17dfe27

 Roberto> I could not reproduce this one. (But I will look at it again later.)

I reproduced it using the non-minimized case; it fails in checkstack
accessing a lua thread that is already freed. So I think this is the
same problem with graylists as the luaD_call case.