Not patching swiftshader bugs in swiftshader feels inexcusable and makes that whole component look like a huge security vulnerability. It's weird that this post mentions it multiple times but never explains why it's not getting fixed.
Is it really true that those bugs aren't getting fixed? There's a commit on July 18th to SwiftShader that seems to be addressing exactly the bug described in this report:
It's short-staffed and there's few community contributors. It's really unfortunate for a really foundational piece of infrastructure for Chrome, Android, and more.