Fix regex timeout double-free after stack_double
As of 10574857ce167869524b97ee862b610928f6272f, it's possible to crash on a double free due to stk_alloc AKA msa->stack_p being freed twice, once at the end of match_at and a second time in FREE_MATCH_ARG in the parent caller.
stk_alloc
msa->stack_p
FREE_MATCH_ARG
Fixes [Bug #20886]
Added by
Fix regex timeout double-free after stack_double
As of 10574857ce167869524b97ee862b610928f6272f, it's possible to crash
on a double free due to
stk_allocAKAmsa->stack_pbeing freedtwice, once at the end of match_at and a second time in
FREE_MATCH_ARGin the parent caller.
Fixes [Bug #20886]