Yes, errors are from other programs. But isn't log (.xsession-errors) being written by X server itself? Even if errors are caused by clients, poor management of log file is an issue. Actually, this allows unprivileged process to completely exhaust disk space and cause denial of service condition (because OS may encounter numerous issues when all disk space consumed).
-- X server may crash system by flooding log so it will consume all diskspace https://bugs.launchpad.net/bugs/504233 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs