fixing Linux Mint 18.3 for Meltdown and Spectre
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
I guess i'm confused on how this exploit works and how it's actually patched. I've read that Firefox's latest version is patched and a future Kernel update on 4.4 and 4.13 will also patch the exploit. What's the difference between each patch?
Also, lets say that you are currently running a patched kernel on your host OS... but your virtual machine kernel isn't patched. Does that make your system vulnerable again?
sorry confused. Just want to understand it a bit more.
Also, lets say that you are currently running a patched kernel on your host OS... but your virtual machine kernel isn't patched. Does that make your system vulnerable again?
sorry confused. Just want to understand it a bit more.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Browser patches only fix the problem on the browser, so a "bad guy" can't exploit the weakness through your browser. But you'd still be vulnerable through other apps. At least that's the way I understand it. Someone correct me if I'm wrong.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
You're correct, but it depends on how the application was written if it's vulnerable or not.Schultz wrote:Browser patches only fix the problem on the browser, so a "bad guy" can't exploit the weakness through your browser. But you'd still be vulnerable through other apps. At least that's the way I understand it. Someone correct me if I'm wrong.
we fedora kde now
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
I think that I read this entire thread and I think that I understand what is going on. I updated my Windows 10 system with the Microsoft patch for the kernel on Thursday, when will Linux offer this update?
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Seems like you missed this.Rocky Bennett wrote:I think that I read this entire thread (...) when will Linux offer this update?
If your issue is solved, kindly indicate that by editing the first post in the topic, and adding [SOLVED] to the title. Thanks!
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
I appreciate this thread is entitled "Fixing Mint18.3....." so please excuse me if this is considered off-topic.
My system is:
Linux Mint 18.2 Sonya 64-bit MATE 1.18.0
Kernel Linux 4.8.0-53-generic x86_64
Intel® Pentium(R) CPU 4405U @ 2.10GHz × 4
I haven't found any reference to the 4.8 kernel anywhere, and I'm at a loss to know what I should do.
I suspect there may be others in the same situation.
So please, what should I / we be doing?
Also, what about 32 bit machines?
If the mods want to make this a new thread, please do so.
My system is:
Linux Mint 18.2 Sonya 64-bit MATE 1.18.0
Kernel Linux 4.8.0-53-generic x86_64
Intel® Pentium(R) CPU 4405U @ 2.10GHz × 4
I haven't found any reference to the 4.8 kernel anywhere, and I'm at a loss to know what I should do.
I suspect there may be others in the same situation.
So please, what should I / we be doing?
Also, what about 32 bit machines?
If the mods want to make this a new thread, please do so.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
You either go with the latest 4.4.x or the latest 4.13.x on January 9, whatever suits you.Linux Mint 18.2 Sonya 64-bit MATE 1.18.0
Kernel Linux 4.8.0-53-generic x86_64
As you can see above, there is no announcement yet in regards to such (remains to be seen...)Also, what about 32 bit machines?
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
I wouldn't attempt to tell you what you need to do, but if you're asking about how...norm.h wrote:I haven't found any reference to the 4.8 kernel anywhere, and I'm at a loss to know what I should do.
I suspect there may be others in the same situation.
So please, what should I / we be doing?
you can start by running Synaptic Package Manager;
Refresh/reload the package database;
Scroll down and select the "kernel and modules" section in the left panel;
Scroll through the list on the right to see what you have installed now - and what is available
If this was not related to your question then I apologize.
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Kernel 4.8 has been end of life for a while now, so I'd change it now, and then update again on the 9th.
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Moem wrote:Seems like you missed this.Rocky Bennett wrote:I think that I read this entire thread (...) when will Linux offer this update?
Yeah, I saw that all over this site and on other sites. Oh well, just a couple of more days.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Please excuse my ignorance, but if this is so [and I don't mean to disbelieve] then why is 4.4. being patched and suggested as an alternative?Schultz wrote:Kernel 4.8 has been end of life for a while now, so I'd change it now, and then update again on the 9th.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
You may want to have a look at this: https://wiki.ubuntu.com/Kernel/Support# ... el_Supportnorm.h wrote:Please excuse my ignorance, but if this is so [and I don't mean to disbelieve] then why is 4.4. being patched and suggested as an alternative?Schultz wrote:Kernel 4.8 has been end of life for a while now, so I'd change it now, and then update again on the 9th.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Thank you - understood now
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
So I have downloaded 4.4.0.104 but I don't seem to be able to get into GRUB to change from 4.8.Schultz wrote:Kernel 4.8 has been end of life for a while now, so I'd change it now, and then update again on the 9th.
Holding down SHIFT when booting doesn't show a menu as described in other posts.
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Press the SHIFT key directly after the BIOS screen disappears and keep it pressed.norm.h wrote:So I have downloaded 4.4.0.104 but I don't seem to be able to get into GRUB to change from 4.8.Schultz wrote:Kernel 4.8 has been end of life for a while now, so I'd change it now, and then update again on the 9th.
Holding down SHIFT when booting doesn't show a menu as described in other posts.
Alternatively, you might set the timeout of Grub to 5 seconds or something, and even change its default invisibility into visibility. But all that's more cumbersome.
By the way: the redeeming update should already be in Proposed since the day before yesterday:
https://wiki.ubuntu.com/SecurityTeam/Kn ... ndMeltdown
Its version numbers are:
4.4.0-108.131
and 4.13.0-25.29
. No mention of 4.10.x or 4.11.x.Tip: 10 things to do after installing Linux Mint 21.3 Virginia
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Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Thanks.
I managed to get into GRUB and booted into the 4.4 kernel but whenever I reboot I have to select it.
Do I need to delete the 4.8 version altogerther?
I managed to get into GRUB and booted into the 4.4 kernel but whenever I reboot I have to select it.
Do I need to delete the 4.8 version altogerther?
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Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Yes.norm.h wrote:Thanks.
I managed to get into GRUB and booted into the 4.4 kernel but whenever I reboot I have to select it.
Do I need to delete the 4.8 version altogerther?
Tip: 10 things to do after installing Linux Mint 21.3 Virginia
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Done - thanks
But when I reboot it still tries to load the old kernel and tells me I have load it first, and I have to select the 4.4 version from GRUB.
My settings are
I followed the instructions here: http://lnxgoat.com/2016/06/17/making-mi ... he-kernel/
How do I get back to a clean boot without having to go through all this selection process?
What did I do wrong please?
Trying dismally to understand..............
But when I reboot it still tries to load the old kernel and tells me I have load it first, and I have to select the 4.4 version from GRUB.
My settings are
Code: Select all
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
How do I get back to a clean boot without having to go through all this selection process?
What did I do wrong please?
Trying dismally to understand..............
Re: fixing Linux Mint 18.3 for Meltdown and Spectre
Further to this..........
I checked in Update Manager for installed kernels and found that 4.8 was still installed.
Clicked REMOVE and the remove process gave me this error.
Checking in Synaptic to see if 4.8 had been uninstalled I found 2 entries in Red [Linux kernel image for version 4.8.0 on 64 bit x86 SMP & Linux kernel extra modules for version 4.8.0 on 64 bit x86 SMP ] had not been removed.
Could this be the problem?
I checked in Update Manager for installed kernels and found that 4.8 was still installed.
Clicked REMOVE and the remove process gave me this error.
Code: Select all
E: linux-image-extra-4.8.0-53-generic: subprocess installed post-removal script returned error exit status 1
E: linux-image-4.8.0-53-generic: subprocess installed post-removal script returned error exit status 1
Could this be the problem?
Last edited by norm.h on Tue Jan 09, 2018 9:55 am, edited 2 times in total.