'Kernel memory leaking' Intel processor design flaw forces Linux, Windows redesign • The Register


71 bookmarks. First posted by geekzter 17 days ago.


RT : Bioinformatics pro tip: keep an unpatched system to benchmark your programs and a patched one for anybody else's
from twitter
7 days ago by burkesquires
meltdown / spectre
8 days ago by evixir
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.
coink  cpu  intel  meltdown  spectre 
14 days ago by paunit
Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign
from twitter
15 days ago by mandrl
QUOTE How can this security hole be abused? At best, the vulnerability could be leveraged by malware and hackers to more easily exploit other security bugs. At worst, the hole could be abused by programs and logged-in users to read the contents of the kernel's memory. Suffice to say, this is not great. The kernel's memory space is hidden from user processes and programs because it may contain all sorts of secrets, such as passwords, login keys, files cached from disk, and so on. Imagine a piece of JavaScript running in a browser, or malicious software running on a shared public cloud server, able to sniff sensitive kernel-protected data.
3PW  999 
15 days ago by lafgrp
Final update A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level…
from instapaper
15 days ago by AramZS
Updated A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level…
from instapaper
16 days ago by nugent
RT : Kidding aside,

Read:
Read:
Read (thread):…
KPTI  intelbug  from twitter_favs
16 days ago by ciphpercoder
Kidding aside,

Read:
Read:
Read (thread):…
from twitter_favs
16 days ago by bjtitus
RT : Intel chip security issue, aka 'FUCKWIT'
from twitter
16 days ago by synchromesh
Security issues arising from design flaw in Intel CPUs will need OS fix that will slow down Windows, Linux, macOS machines; Intel to provide more details soon
16 days ago by joeo10
probably the biggest security problem ever
intel  security  bug  hardware  kernel  memory 
16 days ago by plaxx
Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however we're looking at a ballpark figure of five to 30 per cent slow down, depending on the task and the processor model. More recent Intel chips have features – such as PCID – to reduce the performance hit. Your mileage may vary.
security  intel 
16 days ago by HighCharisma
So this Intel bug is bad but what’s worse is hardware monoculture we’ll be likely dealing with into the next century
from twitter_favs
16 days ago by mawif
Programmers are scrambling to overhaul the open-source Linux kernel's virtual memory system.
Archive 
16 days ago by rboulton
'Kernel memory leaking' Intel processor design flaw forces Linux, Windows redesign via
from twitter
16 days ago by nealrichter
Does this mean all kernel mode switches now incur a cache flush?
from twitter
16 days ago by dinomite
This reads like a detective novel and dives into some interesting things about how modern CPU's work and what they do in silicon to protect different memory spaces. This looks like a pretty nasty issue but we won't know the real extent of it until the embargo is removed.

The aside on the name option for the fix made me chuckle:

> The fix is to separate the kernel's memory completely from user processes using what's called Kernel Page Table Isolation, or KPTI. At one point, Forcefully Unmap Complete Kernel With Interrupt Trampolines, aka FUCKWIT, was mulled by the Linux kernel team, giving you an idea of how annoying this has been for the developers.
16 days ago by thingles
'Kernel memory leaking' Intel processor design flaw forces Linux, Windows redesign
tech-security 
16 days ago by joechin
That Apple Engineer who shipped the "login as root with a blank password" bug can walk a little more smugly today:
from twitter_favs
16 days ago by BeSublime
RT : Coming Soon - Significant slow down on Itel x86 CPUs due to hardware security flaw that must be fixed at OS level
from twitter_favs
16 days ago by rtanglao
Fuente original via
from twitter_favs
17 days ago by sd
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.…
from instapaper
17 days ago by liebo7
'Kernel memory leaking' Intel processor design flaw forces Linux, Windows redesign via Instapaper http://ift.tt/2lEEKle
IFTTT  Instapaper 
17 days ago by chaoxian
Haven’t read this one completely, but it looks like the most comprehensive: …
from twitter
17 days ago by esjewett
More on what’s coming (featuring the occurrence of the term FUCKWIT in reporting):
from twitter_favs
17 days ago by enne
2018 is off to a great start!
from twitter_favs
17 days ago by jukkan
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.…
from instapaper
17 days ago by kohlmannj
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level …
from:ifttt  from:flipboard  DDoS  and  Infrastructure  Security 
17 days ago by curiousstranger
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.…
cpu  hardware  intel  security  aws  azure  gcp  from instapaper
17 days ago by geekzter