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Groups > linux.debian.user > #191458
| From | Nicholas Geovanis <nickgeovanis@gmail.com> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Question on CVE-2017-5754 on Debian 8.9 |
| Date | 2018-01-24 00:10 +0100 |
| Message-ID | <vbfRv-51-3@gated-at.bofh.it> (permalink) |
| References | <vbdZn-7nW-9@gated-at.bofh.it> <vbe93-7rI-9@gated-at.bofh.it> <vbeVr-7XK-1@gated-at.bofh.it> <vbfy9-8b1-7@gated-at.bofh.it> <vbfHP-8ei-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
There was a newer version of the script (about 4 hours newer), but the
new version yields the same result.
So I have a debian 8.6 machine for which this test in the script is failing:
if ! dmesg | grep -qE '(^|\] )Linux version [0-9]'; then
# dmesg truncated
return 2
fi
So on that one debian server, the string "Linux version" does _not_
appear in dmesg output, like so:
# dmesg | grep Linux
[ 0.564432] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 1.108492] Linux agpgart interface v0.103
[ 2.192537] pps_core: LinuxPPS API ver. 1 registered
[ 2.209475] usb usb1: Manufacturer: Linux 3.16.0-5-amd64 ehci_hcd
[ 2.225593] usb usb2: Manufacturer: Linux 3.16.0-5-amd64 ehci_hcd
So my question becomes: Is it just my server, or others too? And why me?
On Tue, Jan 23, 2018 at 4:54 PM, Richard Hector <richard@walnut.gen.nz> wrote:
> On 24/01/18 11:27, Michael Fothergill wrote:
>>
>>
>>
>>
>>
>> Hi there, I am running kernel 4.14.14 under gentoo testing on an
>> AMD kaveri box.
>>
>> The version of GCC I am using is 7.2. Whether that means the
>> reptoline patch is working for me I am not quite sure but it could
>> be I guess.....
>>
>> Someone who is smarter than the average bear has written a patch for
>> the spectre problem with no performance penalty:
>>
>> https://www.neowin.net/news/retpoline-patch-coming-to-linux-49-and-linux-414
>> <https://www.neowin.net/news/retpoline-patch-coming-to-linux-49-and-linux-414>
>>
>> I am not sure if you can do this as debian testing or experimental.
>>
>> Cheers
>>
>> Michael Fothergill
>>
>>
>> You can compile the kernel in debian:
>>
>> https://www.debian.org/releases/jessie/i386/ch08s06.html.en
>>
>>
>> There is also a debian page on gcc7
>>
>> https://wiki.debian.org/GCC7
>>
>> If I ask the gentoo folks they will tell me if the KPTI and retpoline
>> patches are turned on automatically in kernel 4.14.14
>> or if you have to set a specific flag when you run make menuconfig (runs
>> in Debian too); then if GCC7 is new enough for this
>> you are good to go......
>
> The neowin link above has a link to a Phoronix article[1], which
> suggests you need GCC 8.0, or maybe 7.3 if a backport succeeds. That was
> 9 days ago, of course ... Stretch only has 6.3, and even sid only has
> 7.2, so I don't see it hitting debian soon.
>
> Richard
>
> [1]
> https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.9-4.14-Retpoline
>
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Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-23 22:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Sven Hartge <sven@svenhartge.de> - 2018-01-23 22:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-23 22:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Sven Hartge <sven@svenhartge.de> - 2018-01-23 22:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-23 23:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-23 23:50 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Richard Hector <richard@walnut.gen.nz> - 2018-01-24 00:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-24 00:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Jonathan Dowland <jmtd@debian.org> - 2018-01-24 11:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-24 17:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-24 19:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-01-24 00:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Stone <mstone@debian.org> - 2018-01-24 00:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Richard Hector <richard@walnut.gen.nz> - 2018-01-24 02:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 12:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 12:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 13:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 13:50 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Sven Hartge <sven@svenhartge.de> - 2018-01-24 14:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 14:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Sven Hartge <sven@svenhartge.de> - 2018-01-24 14:50 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Vincent Lefevre <vincent@vinc17.net> - 2018-01-24 15:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 15:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 17:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 17:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-24 17:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 18:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 The Wanderer <wanderer@fastmail.fm> - 2018-01-24 18:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-24 18:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 19:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 19:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 19:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 21:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-24 23:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 02:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 10:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-25 11:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 13:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 14:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-25 14:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 14:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 17:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-25 18:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 19:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 19:50 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-25 22:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Brian <ad44@cityscape.co.uk> - 2018-01-25 20:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 22:00 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 18:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-25 22:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 23:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 23:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-25 23:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-25 23:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-26 00:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Lange <klappnase@freenet.de> - 2018-01-26 00:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Michael Fothergill <michael.fothergill@gmail.com> - 2018-01-24 18:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Vincent Lefevre <vincent@vinc17.net> - 2018-01-25 15:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-25 15:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 David Wright <deblis@lionunicorn.co.uk> - 2018-01-25 16:10 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Vincent Lefevre <vincent@vinc17.net> - 2018-01-25 23:20 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Jochen Spieker <ml@well-adjusted.de> - 2018-01-25 21:30 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Sven Joachim <svenjoac@gmx.de> - 2018-01-25 21:40 +0100
Re: Question on CVE-2017-5754 on Debian 8.9 Vincent Lefevre <vincent@vinc17.net> - 2018-01-25 23:40 +0100
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