Many users running Ubuntu 22.04 or Fedora 40 alongside Windows encountered a "Verification failed: (0x1A) Security Violation" error. This occurred because the Linux shim bootloader did not yet have the new signature. Update your Linux shim to version 15.8 or later, or temporarily disable Secure Boot (not recommended).
In technical contexts, identifiers like "KBI" are sometimes used in internal bug-tracking systems, specific hardware firmware labels, or niche modding communities. However, they do not appear in major vulnerability databases like or CVE (e.g., CVE-2024-36058 exists, but "kbi058" is not a standard alias). kbi058 patched
: Attackers could overwrite block sectors of the non-volatile random-access memory (NVRAM), implanting persistent malicious code that survived system reboots and hardware power cycles. Inside the Update: How the Patch Repairs the Defect Many users running Ubuntu 22