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Linux ‘Copy Fail’ flaw lets anyone hijack system privileges. Update ASAP
PC world ^ | 05 04 2026 | Mikael Markander

Posted on 05/05/2026 10:18:48 AM PDT by yesthatjallen

In summary:

PCWorld reports that a critical Linux vulnerability called ‘Copy Fail’ (CVE-2026-31431) allows unprivileged users to hijack system privileges by altering cached files.

This straight-line logic flaw affects all major Linux distributions and represents the most severe Linux threat since 2022’s Dirty Pipe vulnerability.

Patches are available in Linux kernel versions 7.0 and 6.19.12, making immediate system updates essential for security.

SNIP

(Excerpt) Read more at pcworld.com ...


TOPICS:
KEYWORDS: ads; computer; copyfail; lds; linux
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1 posted on 05/05/2026 10:18:48 AM PDT by yesthatjallen
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To: yesthatjallen
Meanwhile in macOS land...


2 posted on 05/05/2026 10:31:17 AM PDT by Frank Drebin (And don't ever let me catch you guys in America!)
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To: Frank Drebin

In Appleworld you’re giving money to and subsidizing left wing causes though.


3 posted on 05/05/2026 10:34:42 AM PDT by ProgressingAmerica (The U.S. Constitution is not a suicide pact. Progressivism is a suicide pact.)
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To: Frank Drebin

It’s amazing something that big and heavy can do that ,LOL


4 posted on 05/05/2026 10:45:07 AM PDT by butlerweave (Fateh)
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To: yesthatjallen

I didn’t know you could get to cached files.


5 posted on 05/05/2026 10:47:26 AM PDT by AppyPappy (They don't call you a Nazi because they think you are one. They do it to justify violence. )
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To: ProgressingAmerica

True but I have found Final Cut to be a solid video editor so that’s why I have a Mac.


6 posted on 05/05/2026 10:48:34 AM PDT by wally_bert (I cannot be sure for certain, but in my personal opinion I am certain that I am not sure..)
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To: ProgressingAmerica
> In Appleworld you’re giving money to and subsidizing left wing causes though.

As with every other tech company.

IT is 99.999999% red-diaper-doper-baby-pinko-commie-lib.

I know this personally as an undercover techie, and i guarantee you they try every trick to ferret out those who aren't full on leftists.

Musk only came out of the closet because he has FU money.

7 posted on 05/05/2026 10:49:08 AM PDT by SecondAmendment (Political insight on loan from Rush Limbaugh)
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To: SecondAmendment; wally_bert

I agree.

Though that means that the only way to not give money to (tech)-leftists is either BSD or Linux.


8 posted on 05/05/2026 10:52:23 AM PDT by ProgressingAmerica (The U.S. Constitution is not a suicide pact. Progressivism is a suicide pact.)
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To: Frank Drebin

This is pure SCAREMONGERING.

First they tell you you’re going to die, and at the end they finally get around to telling you that that it was patched in Kernel 5.10.254, WHICH WAS RELEASED IN 2020!!!!!

Which means this isn’t a new vulnerability, it was documented six years ago.

If you’re a propellerhead and you haven’t updated your kernel in six years, you deserve to catch sabre-toothed crotch crickets.

And nowhere does this article mention that:

“Copy Fail is not a remote code execution vulnerability. An attacker needs local execution first, such as a shell account, compromised service, malicious container, or foothold on a CI runner. Once local access exists, the exploit can turn a low-privileged user context into root on an unpatched Linux system.”

Which means you’re only vulnerable if somebody who means to do you harm has physical access to your computer.

Just what Free Republic nereds. More scaremongering.


9 posted on 05/05/2026 10:54:50 AM PDT by Paal Gulli
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To: wally_bert

Right.

Well, slightly “better” software features is what your priority is i guess. It is what it is.

My biggest priority is not some feature here or there. My priority is not making left wing wallets fatter. The moonbats will not get my money.

Life is all about priorities. It is just priorities.


10 posted on 05/05/2026 10:55:34 AM PDT by ProgressingAmerica (The U.S. Constitution is not a suicide pact. Progressivism is a suicide pact.)
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copy fail patch for raspbian

https://search.brave.com/search?q=copy+fail+patch+for+raspbian&summary=1


11 posted on 05/05/2026 10:57:39 AM PDT by SunkenCiv (TDS -- it's not just for DNC shills anymore -- oh, wait, yeah it is.)
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To: SecondAmendment

/bingo


12 posted on 05/05/2026 10:58:43 AM PDT by SunkenCiv (TDS -- it's not just for DNC shills anymore -- oh, wait, yeah it is.)
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To: Paal Gulli
I believe you just described modern journalism. ;-)
13 posted on 05/05/2026 11:00:45 AM PDT by Frank Drebin (And don't ever let me catch you guys in America!)
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To: ProgressingAmerica

So then all the PC parts companies are red blooded Americans? ;-)


14 posted on 05/05/2026 11:01:51 AM PDT by Frank Drebin (And don't ever let me catch you guys in America!)
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To: Frank Drebin

Probably not; but even though Intel, Apple, and AMD are all American companies I don’t hold the blue-haired in very high regard. I use hand me down parts which I usually don’t pay for so I don’t sweat it much. And since Linux is faster I’m better off for it anyways.

Gotta control what I can actually control right?

Nobody ever recommends to me that the most optimum thing I can do is never ask questions, be a lump on a log, just go through the motions. Lie down, accept whatever comes. So since it is never recommended I never do these things.

Gotta control what I can actually control. That is indeed recommended.


15 posted on 05/05/2026 11:10:52 AM PDT by ProgressingAmerica (The U.S. Constitution is not a suicide pact. Progressivism is a suicide pact.)
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To: ProgressingAmerica
> Though that means that the only way to not give money to (tech)-leftists is either BSD or Linux.

Nice thought, but um no.


16 posted on 05/05/2026 11:13:04 AM PDT by SecondAmendment (Political insight on loan from Rush Limbaugh)
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To: Paal Gulli
> This is pure SCAREMONGERING.

Someone will use this to justify more H1B visa types and/or mandatory AI tooling.

17 posted on 05/05/2026 11:20:25 AM PDT by SecondAmendment (Political insight on loan from Rush Limbaugh)
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To: ProgressingAmerica
Make no mistake, I use all of the platforms, I've built my own rigs and I support you building your own rig and running the OS or OS'essesss (think that's right) that support you!

They each have their strengths and weaknesses, I was mainly referring to the secure side of things with macOS. For my personal use, it has always been the safest and most free of worry, but again, not the right tool for every job ;-)

18 posted on 05/05/2026 11:21:40 AM PDT by Frank Drebin (And don't ever let me catch you guys in America!)
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To: ProgressingAmerica

I would like to have the pricey video technology work. Having a blue screen while doing a long video project has happened more than enough.

My experience with Windows based ones was never that good.

I’ve used KDEN a few times on one of my Linux boxes for lightweight editing some. Not bad.


19 posted on 05/05/2026 11:25:29 AM PDT by wally_bert (I cannot be sure for certain, but in my personal opinion I am certain that I am not sure..)
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To: yesthatjallen

Ok....newbie Linux user here...I just do ALL updates for my desktop and I’m good, right? (I use Brave, Firefox browsers, have Proton mail)


20 posted on 05/05/2026 11:27:25 AM PDT by goodnesswins (Make educ institutions return to the Mission...reading, writing, math...not Opinions & propaganda)
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