Recently, in repositories of the project XZ, actions taken by the author of Bacdor have raised concerns regarding protection mechanisms. A change in the CMakeLists.txt build script highlighted the prevention of Landlock applications in XZ, even when supported by the system. This alteration in the code, specifically in the SI language section, intentionally omitted verification of the Landlock system call, creating a loophole in the security measures.
/Reports, release notes, official announcements.