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#4633589 - 01/13/18 12:17 PM Mint Blog recommendations for Meltdown and Spectre
MONKEYMAN Offline


Registered: 06/24/04
Posts: 2125
Loc: St. Louis
Noticed this yesterday. Some info may be helpful if not using Mint.

Security notice: Meltdown and Spectre
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#4634204 - 01/14/18 03:48 AM Re: Mint Blog recommendations for Meltdown and Spectre [Re: MONKEYMAN]
Garak Offline


Registered: 12/05/09
Posts: 24051
Loc: Regina, Saskatchewan, Canada
Yes, the Mint people sent out a kernel upgrade, which they normally don't do within a release. They usually don't touch that unless you go to a newer version of Mint altogether.

It worked well. I was afraid of issues with Secure Boot again, since the Mint people seem utterly baffled by the construct, but that didn't materialize this time.
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Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4634570 - 01/14/18 11:35 AM Re: Mint Blog recommendations for Meltdown and Spectre [Re: MONKEYMAN]
yesthatsteve Offline


Registered: 06/27/11
Posts: 721
Loc: Kansas City, MO
I applied the Mint update, as well, and everything has been smooth sailing.
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#4634699 - 01/14/18 01:45 PM Re: Mint Blog recommendations for Meltdown and Spectre [Re: Garak]
uc50ic4more Offline


Registered: 05/31/06
Posts: 3275
Loc: Windsor, Ontario, Canada
Originally Posted By: Garak
Yes, the Mint people sent out a kernel upgrade, which they normally don't do within a release.


Good heavens do I ever wish Canonical would adopt this as a best practice.

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#4634852 - 01/14/18 04:24 PM Re: Mint Blog recommendations for Meltdown and Spectre [Re: MONKEYMAN]
BearZDefect Offline


Registered: 08/15/05
Posts: 2227
Loc: Lexington, KY
I am curious, this Google blog post explains how one can write code what would cause branch prediction to load contents of memory into the CPU cache that would normally cause an access violation. So now that data my program should not have access to is in the L1 cache, but can a user mode program read all the contents of the L1 cache at will?

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#4635338 - 01/15/18 03:03 AM Re: Mint Blog recommendations for Meltdown and Spectre [Re: uc50ic4more]
Garak Offline


Registered: 12/05/09
Posts: 24051
Loc: Regina, Saskatchewan, Canada
Originally Posted By: uc50ic4more
Good heavens do I ever wish Canonical would adopt this as a best practice.

I'm not too bothered by it, in that I've had very, very few issues with kernel upgrades, know how to revert fairly readily if there's an issue, and haven't had to fix messes for other people. But, I do see the point, and it's interesting to note where Mint has their tipping point. I know Ubuntu would do kernel upgrade after kernel upgrade within a release.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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