Last Tuesday, loads of Linux users—many running packages released as early as this year—started reporting their devices were failing to boot. Instead, they received a cryptic error message that included the phrase: “Something has gone seriously wrong.”

The cause: an update Microsoft issued as part of its monthly patch release. It was intended to close a 2-year-old vulnerability in GRUB, an open source boot loader used to start up many Linux devices. The vulnerability, with a severity rating of 8.6 out of 10, made it possible for hackers to bypass secure boot, the industry standard for ensuring that devices running Windows or other operating systems don’t load malicious firmware or software during the bootup process. CVE-2022-2601 was discovered in 2022, but for unclear reasons, Microsoft patched it only last Tuesday.

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The reports indicate that multiple distributions, including Debian, Ubuntu, Linux Mint, Zorin OS, Puppy Linux, are all affected. Microsoft has yet to acknowledge the error publicly, explain how it wasn’t detected during testing, or provide technical guidance to those affected. Company representatives didn’t respond to an email seeking answers.

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[–] 156 points 2 years ago (17 children)

So, no booting into Windows until this is fixed then? Fine by me. Hell, might actually make me uninstall it completely and free some disk space...

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  • [–] 141 points 2 years ago (4 children)

    Hey Microsoft: Windows is yours, GRUB is mine. I don't give a shit if GRUB is vulnerable, I'll fix that myself if I choose to.

    Mind your own fucking business. The most you should ever do is let me know about it, not try to patch things you aren't responsible for...

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    [–] 121 points 2 years ago (9 children)

    CVE-2022-2601 was discovered in 2022, but for unclear reasons, Microsoft patched it only last Tuesday.

    I respect their journalistic integrity for not speculating, but it was definitely because the NSA was exploiting it.

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    [+] 120 points 2 years ago* (last edited 11 months ago) (1 child)
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    [–] 83 points 2 years ago (7 children)

    Secure Boot is bullshit anyway

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  • [–] 31 points 2 years ago (6 children)

    It is fine if you only accept signatures from yourself. However, that's a lot of work as you need to sign everything.

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  • [–] 82 points 2 years ago* (last edited 2 years ago) (6 children)

    I'm confused - why is Microsoft trying to - or expected to, by the article authors - patch a vulnerability in GRUB?

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    [–] 57 points 2 years ago (3 children)

    I get to dual boot at work (I run mint btw) and the only reason I ever boot into windows every week or three is to make sure it doesn’t get so out of date that it gets booted from the network.

    I guess it’s time to stop that shit! Having windows available is not worth the risk of messing up my work machine. Hell I’m tempted to nuke that windows partition and double the size of my /home partition!

    Though I will give Microsoft credit that m365 stuff, including video calls in Teams, work great using the web versions in Firefox. That’s even with the security and privacy stuff cranked up. I only white listed those sites for cookies and local storage for convenience.

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    [–] 54 points 2 years ago (1 child)

    This sort of ridiculousness is why I got two seperate drives (needed the extra space anyways) and choose which one to boot from the mobo EFI menu.

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  • [–] 52 points 2 years ago (3 children)

    I just tried installing this patch tonight on my windows drive - not because I use windows, just to… you know… keep it updated and secure I guess.

    It literally won’t even install. It just fails out every time. Whatever. Microsoft releases so many bad patches lately. WTH are they even doing over there? Windows used to be king and they’ve been screwing it up since 8 came out.

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  • [–] 67 points 2 years ago* (last edited 2 years ago) (2 children)

    Microsoft fired its entire QA team 10 years ago, and shifted the responsibility for testing onto developers. They also got rid of their dedicated hardware lab where software would be tested on many different hardware combinations.

    I have worked in two companies that made the same move of firing QA, and in both the quality of the released software took a marked dive. (In neither company did senior management admit that what everyone warned them would be a mistake was a mistake. Instead they blamed developers.)

    These days Microsoft's testing team is whichever users receive each update first. They rely on users and telemetry to do what should be the job of dedicated testers.

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  • [–] 27 points 2 years ago

    This is hardly a new thing for MS. One of the first emails I remember getting when I got to college back in 2003 was from campus IT begging people not to install the latest XP update because it reenabled a vulnerability to existing malware.

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  • [–] 13 points 2 years ago

    Microsoft fired its entire QA team 10 years ago, and shifted the responsibility for testing onto developers. They also got rid of their dedicated hardware lab where software would be tested on many different hardware combinations.

    That...makes SO much sense and explains a lot! Thanks for mentioning it.

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  • [–] 44 points 2 years ago (2 children)

    windows update can and will always find your dual boot eventually and break it

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    [+] 43 points 2 years ago* (last edited 1 year ago) (8 children)
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    [–] 40 points 2 years ago (3 children)

    Has SecureBoot ever accomplished anything vaguely resembling security?

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    [–] 38 points 2 years ago (6 children)

    Maybe its finally time to get rid of my dual boot. I haven't used the windows side in like half a year...

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  • [–] 26 points 2 years ago

    I was shocked how little I need Windows. I went dual boot install but just... never booted Windows again. My games work. I'm happy. Why should I boot Windows?

    Really I should just remove Windows but I'm lazy.

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    [–] 38 points 2 years ago (5 children)

    If it's a Linux problem why Microsoft has to patch it?

    It's like if someone gives you a ride to the hospital and the doctor treats him instead of you

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  • [–] 24 points 2 years ago (1 child)

    I'm not sure I follow that analogy, if you get a ride to a hospital you don't expect it to lock off all other destinations. What happens in the hospital is irrelevant.

    From reading the article, this is more like if you walk into a hotel and they burn down your house so you have no choice but to stay. I suppose in theory you could argue in very bad faith that this is a problem with the house since it's the house that burned, but in reality the problem is the fact they're the ones who started the fire.

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  • [–] 21 points 2 years ago (1 child)

    Because people cannot block darn windows updates. Its a real malware only allowed by law

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    [–] 32 points 2 years ago

    booting into windows?

    it's been 84 years…

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  • [–] 31 points 2 years ago (53 children)

    Y'all, help a dummy out. I dual boot windows and Fedora. I only keep windows around for a very few college classes that require for screenwriting software. I have not booted into windows in months. I have a screenwriting class coming up in a week.

    How worried should I be? I am not great with computers, I run fedora mostly because I support the philosophy of Linux, less for the techy stuff. Please advice, Linux people. I'm scurred.

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  • [–] 19 points 2 years ago (5 children)

    Does that screenwriting software require a lot of performance? You might opt to install Windows into a virtual machine, as described here: https://www.windowscentral.com/how-setup-windows-10-virtual-machine-linux

    Essentially you're using some software to emulate a computer inside your computer that can run any operating system you want. It doesn't need to touch your actual operating system installation, you can treat it as just another program. For your use case that sounds appropriate; you occasionally need to run specific software that has low system requirements. This way you can do that without risking Microsoft borking your Linux machine any time it feels like it.

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  • [–] 12 points 2 years ago

    Sorry idk specifically how to avoid the update, but the linked ArsTechnica article has some advice

    Someone here advised & I’d agree: use a Windows VM, for things you haven’t found the Linux version of yet.

    Windows’s plan to screenshot everything will include your private artistic work too, so you’ll be doing yourself a favor

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    [–] 21 points 2 years ago

    “The SBAT value is not applied to dual-boot systems that boot both Windows and Linux and should not affect these systems,” the bulletin read. “You might find that older Linux distribution ISOs will not boot. If this occurs, work with your Linux vendor to get an update.”

    Excuse me, those are the opposite of each other.

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  • [–] 18 points 2 years ago (2 children)

    I use Debian and I also was affected by this Windows update. I was able to boot by disabling secure boot. I also found this option that apparently fixes the problem by changing the sbat policy using mokutil. But I haven't tried it out yet. Has anyone got any luck with something else besides disabling secure boot?

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    [+] 17 points 2 years ago* (last edited 2 years ago) (6 children)
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    [–] 16 points 2 years ago

    They had to know this would happen, right?

    Like, they didn't think to test with a dual booting system? Wtf?

    Where do they even get off fixing a bug in grub?

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  • [–] 14 points 2 years ago

    It ain't done til GRUB don't run?

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  • [–] 13 points 2 years ago (5 children)

    Always install rEFInd Always keep a rEFInd USB stick around Basic Computer 101

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    [–] 13 points 2 years ago (2 children)

    😈😈 Finally an advantage to using rEFInd 😈😈

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    [–] 12 points 2 years ago

    CVE-2022-2601 was discovered in 2022, but for unclear reasons, Microsoft patched it only last Tuesday.

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