Issue #19750 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: REQUIRED to 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: DONE ruby_3_2 3f6187a94797d3c4a7db00563a885e4e613b51cf merged revision(s) 1bc8838d60ef3fc6812d3b64ed87caaf0ae943d9. ---------------------------------------- Bug #19750: Ruby hangs when parsing Regexp with unterminated unicode "/\u{" https://bugs.ruby-lang.org/issues/19750#change-103904 * Author: tompng (tomoya ishida) * Status: Closed * Priority: Normal * Assignee: jeremyevans0 (Jeremy Evans) * ruby -v: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [arm64-darwin22] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: DONE ---------------------------------------- Ruby hangs up for a while and gets `failed to allocate memory (NoMemoryError)` ~~~shell $ ruby -e "/\\u{" ruby: failed to allocate memory (NoMemoryError) ~~~ ~~~ruby RubyVM::AbstractSyntaxTree.parse "/\\u{" # => SyntaxError RubyVM::AbstractSyntaxTree.parse "/\\u{\n" # => failed to allocate memory (NoMemoryError) ~~~ Found in https://github.com/ruby/irb/issues/620 -- https://bugs.ruby-lang.org/