SUSE Blog

Author: Nicolai Stange

Nicolai Stange
By: Nicolai Stange

May 7, 2018 1:54 pm

1,386 views

Live Patching Meltdown – SUSE Engineer’s research project (Part 4 – The Conclusion)

Now that everything has been set to go as described in Part 1 (Key technical obstacles for Live Patching Meltdown), Part 2 (Virtual address mappings and the Meltdown vulnerability)  and Part 3 (Changes needed for Translation Lookaside Buffer (TLB) flushing primitives), the last missing piece is to actually replace the entry code and make it […]

Read More

Tags: , ,

Categories: SUSE Linux Enterprise Live Patching

Nicolai Stange
By: Nicolai Stange

May 4, 2018 12:20 pm

1,179 views

Live Patching Meltdown – SUSE Engineer’s research project (Part 3)

Building upon the Part 1 (Key technical obstacles for Live Patching Meltdown) and the Part 2 (Virtual address mappings and the Meltdown vulnerability), let's now address the needed changes to the TLB flushing primitives. In order to resolve virtual to physical addresses, a CPU must traverse the page table tree. This is a costly […]

Read More

Tags: , ,

Categories: SUSE Linux Enterprise Live Patching

Nicolai Stange
By: Nicolai Stange

May 3, 2018 11:59 am

1,299 views

Live Patching Meltdown – SUSE Engineer’s research project (Part 2)

Following up on the Part 1 about key technical obstacles for Live Patching Meltdown, in this blog I will give you some background on virtual address mappings in context of the Meltdown vulnerability and look at patching kGraft itself! Virtually mapped memory is a protection feature provided by the CPU, orthogonal to the privilege separation […]

Read More

Tags: , ,

Categories: SUSE Linux Enterprise Live Patching

Nicolai Stange
By: Nicolai Stange

May 2, 2018 2:37 pm

3,267 views

Live Patching Meltdown – SUSE Engineer’s research project (Part 1)

Meltdown is one of the biggest and complex security vulnerabilities that happened recently and impacted almost everyone. I am a SUSE live patching engineer and wanted to share with you how unique fixing this vulnerability was in terms of scope and complexity. My goal was to see if I could also create a live patch […]

Read More

Tags: , ,

Categories: SUSE Linux Enterprise Live Patching

    Section Title

    Search

    Social Media

    Recent Posts Title

    Recent Blog Posts

    Recent Posts

    Popular Posts Title

    Popular Blog Posts

    Popular Posts

    Categories

    Archives

    About Links

    SUSE History
    SUSE Management Team
    SUSE Logos & Imagery