shopify-scripts: Heap Overflow in fiber_switch triggered from Fiber.transfer

It appears as if my recommendations were ignored in the GitHub issue, so I've repeated the issue here. PoC Fiber.new.transfer 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0 Explanation The cause of this is th...

shopify-scripts: heap use after free in fiber_switch

@ssarong reported an input that triggers a heap use-after-free: https://github.com/mruby/mruby/issues/3619 The issue was addressed upstream in https://github.com/mruby/mruby/commit/15fba69710c7395b4e9523edb191ef84f672fa28...