Ubuntu
linux package

  1. Bug #1861238
  2. Comment #0

Comment 0 for bug 1861238

Revision history for this message
Andrey Konovalov (xairy) wrote :

It's possible to turn off kernel lockdown by emulating a USB keyboard via USB/IP and sending an Alt+SysRq+X key combination through it.

Ubuntu's kernels have USB/IP enabled (CONFIG_USBIP_VHCI_HCD=m and CONFIG_USBIP_CORE=m) with signed usbip_core and vhci_hcd modules provided in the linux-extra-modules-* package.

See the PoC here: https://github.com/xairy/unlockdown#method-1-usbip