| 2014-08-21 10:35:59 |
Jack Leigh |
bug |
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added bug |
| 2014-08-21 10:44:15 |
Andy Whitcroft |
nominated for series |
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Ubuntu Trusty |
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| 2014-08-21 10:44:15 |
Andy Whitcroft |
bug task added |
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linux (Ubuntu Trusty) |
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| 2014-08-21 10:44:15 |
Andy Whitcroft |
nominated for series |
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Ubuntu Utopic |
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| 2014-08-21 10:44:15 |
Andy Whitcroft |
bug task added |
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linux (Ubuntu Utopic) |
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| 2014-08-21 10:44:28 |
Andy Whitcroft |
linux (Ubuntu Utopic): status |
New |
Fix Released |
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| 2014-08-21 10:44:34 |
Andy Whitcroft |
linux (Ubuntu Trusty): status |
New |
In Progress |
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| 2014-08-21 10:44:37 |
Andy Whitcroft |
linux (Ubuntu Trusty): importance |
Undecided |
Medium |
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| 2014-08-21 10:44:40 |
Andy Whitcroft |
linux (Ubuntu Trusty): assignee |
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Andy Whitcroft (apw) |
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| 2014-08-21 10:44:43 |
Andy Whitcroft |
linux (Ubuntu Utopic): importance |
Undecided |
Medium |
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| 2014-08-21 10:44:45 |
Andy Whitcroft |
linux (Ubuntu Utopic): assignee |
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Andy Whitcroft (apw) |
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| 2014-08-21 12:27:34 |
Andy Whitcroft |
description |
The issue is explained in detail at http://lwn.net/Articles/588799/
I am trying to load a backported drm module using dkms.
It is not signed so is listed as tainted and trace points are disabled.
As explained in the above article this is because the TAINT_FORCED MODULE flag is incorrectly set for unsigned modules.
The final patch to fix this and add a TAINT_UNSIGNED_MODULE that does not disable trace points can be found at http://lwn.net/Articles/588803/ (fixed in 3.15)
Please consider shipping this patch.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-34-generic 3.13.0-34.60
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: badger 2013 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Aug 21 11:28:15 2014
HibernationDevice: RESUME=UUID=21f8f6b4-495d-4bc6-8dec-1f78435d4b95
InstallationDate: Installed on 2014-06-30 (51 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 0301CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=d56caf05-a203-436f-8497-b8a37294fe8a ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-34-generic N/A
linux-backports-modules-3.13.0-34-generic N/A
linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/14/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 80ET42WW (1.19 )
dmi.board.name: 0301CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr80ET42WW(1.19):bd10/14/2010:svnLENOVO:pn0301CTO:pvrThinkPadEdge:rvnLENOVO:rn0301CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0301CTO
dmi.product.version: ThinkPad Edge
dmi.sys.vendor: LENOVO |
[Impact]
Developers are unable to unable to use kernel tracing functions on kernel modules they have themselves compiled. This makes Ubuntu a poor platform for module developement and debugging.
[Test Case]
Build an OOT or modified version of a module, insert it and notice that tracing becomes disabled. Apply updated kernel and confirm the same does not occur.
[Regression Potential]
This only changes the taint infrastructure to introduce a single new flag. Should be very low risk.
===
The issue is explained in detail at http://lwn.net/Articles/588799/
I am trying to load a backported drm module using dkms.
It is not signed so is listed as tainted and trace points are disabled.
As explained in the above article this is because the TAINT_FORCED MODULE flag is incorrectly set for unsigned modules.
The final patch to fix this and add a TAINT_UNSIGNED_MODULE that does not disable trace points can be found at http://lwn.net/Articles/588803/ (fixed in 3.15)
Please consider shipping this patch.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-34-generic 3.13.0-34.60
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: badger 2013 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Aug 21 11:28:15 2014
HibernationDevice: RESUME=UUID=21f8f6b4-495d-4bc6-8dec-1f78435d4b95
InstallationDate: Installed on 2014-06-30 (51 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 0301CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=d56caf05-a203-436f-8497-b8a37294fe8a ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-34-generic N/A
linux-backports-modules-3.13.0-34-generic N/A
linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/14/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 80ET42WW (1.19 )
dmi.board.name: 0301CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr80ET42WW(1.19):bd10/14/2010:svnLENOVO:pn0301CTO:pvrThinkPadEdge:rvnLENOVO:rn0301CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0301CTO
dmi.product.version: ThinkPad Edge
dmi.sys.vendor: LENOVO |
|
| 2014-08-21 18:37:25 |
Andy Whitcroft |
linux (Ubuntu Trusty): status |
In Progress |
Fix Committed |
|
| 2014-09-04 18:32:53 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/trusty-proposed/linux-keystone |
|
| 2014-09-05 15:09:26 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/precise-proposed/linux-lts-trusty |
|
| 2014-09-08 20:28:59 |
Brad Figg |
tags |
amd64 apport-bug third-party-packages trusty |
amd64 apport-bug third-party-packages trusty verification-needed-trusty |
|
| 2014-09-22 22:45:50 |
Launchpad Janitor |
linux (Ubuntu Trusty): status |
Fix Committed |
Fix Released |
|
| 2014-09-22 22:45:50 |
Launchpad Janitor |
cve linked |
|
2014-3601 |
|
| 2014-09-22 22:45:50 |
Launchpad Janitor |
cve linked |
|
2014-5077 |
|
| 2014-09-22 22:45:50 |
Launchpad Janitor |
cve linked |
|
2014-5472 |
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| 2014-09-22 23:43:49 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/precise-security/linux-lts-trusty |
|
| 2014-10-01 19:24:09 |
Brad Figg |
tags |
amd64 apport-bug third-party-packages trusty verification-needed-trusty |
amd64 apport-bug third-party-packages trusty verification-done-trusty |
|
