Security advisory for rustc (CVE-2021-42574) | Rust Blog
"The Rust Security Response WG was notified of a security concern affecting source code containing "bidirectional override" Unicode codepoints: in some cases the use of those codepoints could lead to the reviewed code being different than the compiled code."
"The lead developer of musl-libc, Rich Felker, omitted a broadly used feature from musl’s resolver in the interest of obtaining a rapid response from upstream DNS. Perhaps in the vein of fail-early-and-often, musl-libc provides no facility for TCP based requests and responses"