{
  "id": 221314,
  "title": "Linux Accidentally Left Legacy I/O & Memory Handlers Open In Kernel Lockdown Mode",
  "url": "https://urgent.news/2026/08/06/linux-accidentally-left-legacy-i-o-memory-handlers-open-in-kernel",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-06T13:50:00.000Z",
  "source": {
    "name": "Phoronix",
    "slug": "phoronix",
    "url": "https://www.phoronix.com/news/Linux-Lockdown-Legacy-IO-Mem"
  },
  "original_language": "en",
  "account": null,
  "summary": "For nearly the past decade has been the kernel lockdown mode for tightening up kernel access from user-space such as when UEFI Secure Boot is enabled. The kernel lockdown mode restricts PCI BAR access, no writing to /dev/mem, and other restrictions so user-space can't can't modify the running kernel or access sensitive kernel memory. An oversight has allowed legacy I/O and memory interfaces via…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}