The provided vulnerability information references quadratic complexity issues in cmark-gfm's parsing/rendering logic but does not include specific commit diffs, code snippets, or function names from the underlying library. While the advisories describe attack patterns (e.g., long sequences of '>', '-', or list items) and mention fixes related to list numbering and HTML tag nesting, the technical details required to map these to specific functions (e.g., functions in block.c, inlines.c, or renderers) are absent from the provided data. Without access to the actual patched code changes in cmark-gfm's 0.29.0.gfm.10/11 releases, we cannot confidently identify exact vulnerable functions. The vulnerabilities are contextually related to markdown parsing primitives but require code-level analysis for precise attribution.