[Tarantool-patches] [PATCH luajit 6/6] FFI: Fix dangling reference to CType in carith_checkarg().

[Sergey Bronnikov]

Thanks for the patch! LGTM

On 10/23/23 12:22, Sergey Kaplun wrote:
> From: Mike Pall <mike>
>
> Reported by Sergey Kaplun.
>
> (cherry-picked from commit db944b2b56c86fcf133745976763604d96110285)
>
> During of an arithmetic operation with a cdata function object and some
> cdata value in `carith_checkarg()`, reallocation of `cts->tab` in
> `lj_ctype_intern()` may occur. In that case, the reference to the first
> `CType` object (`ca->ct[0]`) becomes invalid. This patch saves the
> `CTypeID` of this object and gets its `CType` again after possible
> reallocation.
>
> Sergey Kaplun:
> * added the description and the test for the problem
>
> Part of tarantool/tarantool#9145
> ---
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