Advanced

Linux Accidentally Left Legacy I/O & Memory Handlers Open In Kernel Lockdown Mode

Posted by bob on
Phoronix		Mail this story
Print this story

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 sysfs to remain open in lockdown mode, but a fix is on the way...

Full Story

  Nav
» Read more about: Groups: Kernel, Linux; Story Type: News Story

» Get new stories by e-mail: nightly or as they are published

« Return to the newswire homepage

  Related stories
» More like this

This topic does not have any threads posted yet!

You cannot post until you login.