seccomp filter: execve(): Operation not permitted
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux Lowlatency kernel (for fun) |
Undecided
|
Unassigned | |||
linux (Ubuntu) |
Medium
|
Unassigned | |||
Quantal |
Undecided
|
Unassigned | |||
Raring |
Undecided
|
Unassigned | |||
linux-lowlatency (Ubuntu) |
Undecided
|
Unassigned | |||
Quantal |
Undecided
|
Unassigned | |||
Raring |
Undecided
|
Unassigned | |||
linux-ti-omap4 (Ubuntu) |
Undecided
|
Unassigned | |||
Quantal |
Undecided
|
Unassigned | |||
Raring |
Undecided
|
Unassigned |
Bug Description
=== System information ===
$ cat /proc/version_
Ubuntu 3.8.0-19.
$ lsb_release -d
Description: Ubuntu 13.04
=== How to reproduce ===
$ gcc seccomp-filter.c
$ ./a.out
=== Expected output ===
OK
=== Actual output ===
execve(): Operation not permitted
status = -1
=== Extra information ===
This testcase works with "vanilla" kernels (tested: v3.8 & v3.10)
Related branches
Cédric VINCENT (cedric-vincent-m) wrote : | #1 |
Changed in linux (Ubuntu): | |
status: | New → Incomplete |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
tags: | added: kernel-da-key raring |
Joseph Salisbury (jsalisbury) wrote : | #3 |
Are you only seeing this with the lowlatency kernel? I just tested you program on the latest Saucy kernel, and didn't have the issue.
Cédric VINCENT (cedric-vincent-m) wrote : | #4 |
Joseph, I get the same error with the "generic" kernel (using ubuntu-
$ cat /proc/version_
Ubuntu 3.8.0-19.29-generic 3.8.8
$ lsb_release -d
Description: Ubuntu 13.04
$ gcc seccomp-filter.c
$ ./a.out
execve(): Operation not permitted
status = -1
Joseph Salisbury (jsalisbury) wrote : | #5 |
Thanks for testing. I wonder if this issue exists in Raring, but may have been fixed in Saucy.
Would it be possible for you to test the latest Saucy kernel? You can find the .debs under the "Builds" section for your particular arch.
Thanks in advance.
Cédric VINCENT (cedric-vincent-m) wrote : | #6 |
Joseph: as of today, the test-case works with http://
$ cat /proc/version_
Ubuntu 3.10.0-6.17-generic 3.10.3
$ lsb_release -d
Description: Ubuntu Saucy Salamander (development branch)
Cédric VINCENT (cedric-vincent-m) wrote : | #7 |
When disabling AppArmor (boot option "apparmor=0"), seccomp-filter
works as expected. According to [0], commit 259e5e6c was integrated
in the Ubuntu kernel patch without its successor (commit c29bceb3).
However, they are dependant each other:
* commit 259e5e6c:
Note, this patch causes execve to fail when PR_SET_NO_NEW_PRIVS is
set and AppArmor is in use. It is fixed in a subsequent patch.
* commit c29bceb3:
Fix execve behavior apparmor for PR_{GET,
Joseph: is it possible to officially add the subsequent patch (commit
c29bceb3) to the Ubuntu kernel patch?
Cédric VINCENT (cedric-vincent-m) wrote : | #8 |
Actually, it's simpler than that. The following three lines were integrated back to "security/
/* XXX: no_new_privs is not usable with AppArmor yet */
if (bprm->unsafe & LSM_UNSAFE_
return -EPERM;
Technically, these three lines were deprecated by commit c29bceb3.
John Johansen (jjohansen) wrote : | #9 |
affects quantal and raring lowlatency kernels
no longer affects: | linux |
Andy Whitcroft (apw) wrote : | #10 |
This commit is not present in Saucy.
Changed in linux (Ubuntu Quantal): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Raring): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu): | |
status: | Incomplete → Triaged |
status: | Triaged → Invalid |
Changed in linux-lowlatency (Ubuntu): | |
status: | New → Invalid |
Changed in linux-ti-omap4 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-lowlatency (Ubuntu Quantal): | |
status: | New → Fix Committed |
Changed in linux-lowlatency (Ubuntu Raring): | |
status: | New → Fix Committed |
Changed in linux-ti-omap4 (Ubuntu Quantal): | |
status: | New → Fix Committed |
Changed in linux-ti-omap4 (Ubuntu Raring): | |
status: | New → Fix Committed |
Andy Whitcroft (apw) wrote : | #11 |
Saucy ti-omap4 is a copy forward.
Changed in linux-ti-omap4 (Ubuntu): | |
status: | Invalid → Fix Committed |
Andy Whitcroft (apw) wrote : | #12 |
All applied to the master branches. Expect this in the next upload.
Brad Figg (brad-figg) wrote : | #13 |
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-
If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/
tags: | added: verification-needed-quantal |
tags: | added: verification-needed-raring |
Cédric VINCENT (cedric-vincent-m) wrote : | #15 |
Succesfully tested with: http://
Updated kernel: Ubuntu 3.8.0-30.44-generic 3.8.13.6
tags: |
added: verification-done removed: verification-needed-quantal verification-needed-raring |
Launchpad Janitor (janitor) wrote : | #16 |
This bug was fixed in the package linux - 3.8.0-30.44
---------------
linux (3.8.0-30.44) raring; urgency=low
[Steve Conklin]
* Release Tracking Bug
- LP: #1215596
[ Upstream Kernel Changes ]
* Don't attempt to send extended INQUIRY command if skip_vpd_pages is set
- LP: #1215155
linux (3.8.0-30.43) raring; urgency=low
[Steve Conklin]
* Release Tracking Bug
- LP: #1215095
[ Andy Whitcroft ]
* [Packaging] supply perf with appropriate prefix to ensure use of local
config
- LP: #1206200
- CVE-2013-1060
[ Brad Figg ]
* Start new release
[ John Johansen ]
* Revert "SAUCE: (no-up) AppArmor: Disable Add PR_{GET,
to prevent execve from granting privs"
- LP: #1202161
[ Joseph Salisbury ]
* SAUCE: (no-up) intel_ips: blacklist ASUSTek G60JX laptops
- LP: #1210848
[ Kamal Mostafa ]
* SAUCE: (no-up) Revert "SAUCE: (no-up) drm/i915: quirk no PCH_PWM_ENABLE
for Dell XPS13 backlight"
[ Tim Gardner ]
* [Config] Include rbd and kvm in the virtual inclusion list
- LP: #1206961
[ Upstream Kernel Changes ]
* Revert "drm/i915: Workaround incoherence between fences and LLC across
multiple CPUs"
- LP: #1207977
* xen/blkback: Check device permissions before allowing OP_DISCARD
- LP: #1207977
* ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
- LP: #1207977
* ASoC: sglt5000: Fix SGTL5000_
- LP: #1207977
* drm/i915: Correct obj->mm_list link to
dev_
- LP: #1207977
* drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a
- LP: #1207977
* Partially revert "drm/i915: unconditionally use mt forcewake on
hsw/ivb"
- LP: #1207977
* drm/i915: Fix write-read race with multiple rings
- LP: #1207977
* drm/i915: merge {i965, sandybridge}
- LP: #1207977
* drm/i915: Fix incoherence with fence updates on Sandybridge+
- LP: #1207977
* drm/i915: rename sdvox_reg to hdmi_reg on HDMI context
- LP: #1207977
* drm/i915: don't setup hdmi for port D edp in ddi_init
- LP: #1207977
* drm/i915: Preserve the DDI_A_4_LANES bit from the bios
- LP: #1207977
* drm/radeon/hdmi: make sure we have an afmt block assigned
- LP: #1207977
* drm/radeon: allocate SA bo in the requested domain
- LP: #1207977
* drm/radeon: allow selection of alignment in the sub-allocator
- LP: #1207977
* ACPI / memhotplug: Fix a stale pointer in error path
- LP: #1207977
* PM / Sleep: avoid 'autosleep' in shutdown progress
- LP: #1207977
* ext4: fix error handling in ext4_ext_truncate()
- LP: #1207977
* radeon kms: do not flush uninitialized hotplug work
- LP: #1207977
* ALSA: asihpi: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: atiixp: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: 6fire: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: ua101: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: usx2y: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: pxa2xx: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ASoC: atmel: Fix unl...
Changed in linux (Ubuntu Raring): | |
status: | Fix Committed → Fix Released |
Launchpad Janitor (janitor) wrote : | #17 |
This bug was fixed in the package linux-lowlatency - 3.8.0-30.22
---------------
linux-lowlatency (3.8.0-30.22) raring; urgency=low
[ Kaj Ailomaa ]
* rebase to Ubuntu-3.8.0-30.44
* Release Tracking Bug
- LP: #1215674
[ Ubuntu: 3.8.0-30.44 ]
* Release Tracking Bug
- LP: #1215596
* Don't attempt to send extended INQUIRY command if skip_vpd_pages is set
- LP: #1215155
[ Ubuntu: 3.8.0-30.43 ]
* Release Tracking Bug
- LP: #1215095
* [Packaging] supply perf with appropriate prefix to ensure use of local
config
- LP: #1206200
- CVE-2013-1060
* Start new release
* Revert "SAUCE: (no-up) AppArmor: Disable Add PR_{GET,
to prevent execve from granting privs"
- LP: #1202161
* SAUCE: (no-up) intel_ips: blacklist ASUSTek G60JX laptops
- LP: #1210848
* SAUCE: (no-up) Revert "SAUCE: (no-up) drm/i915: quirk no PCH_PWM_ENABLE
for Dell XPS13 backlight"
* [Config] Include rbd and kvm in the virtual inclusion list
- LP: #1206961
* Revert "drm/i915: Workaround incoherence between fences and LLC across
multiple CPUs"
- LP: #1207977
* xen/blkback: Check device permissions before allowing OP_DISCARD
- LP: #1207977
* ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
- LP: #1207977
* ASoC: sglt5000: Fix SGTL5000_
- LP: #1207977
* drm/i915: Correct obj->mm_list link to
dev_
- LP: #1207977
* drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a
- LP: #1207977
* Partially revert "drm/i915: unconditionally use mt forcewake on
hsw/ivb"
- LP: #1207977
* drm/i915: Fix write-read race with multiple rings
- LP: #1207977
* drm/i915: merge {i965, sandybridge}
- LP: #1207977
* drm/i915: Fix incoherence with fence updates on Sandybridge+
- LP: #1207977
* drm/i915: rename sdvox_reg to hdmi_reg on HDMI context
- LP: #1207977
* drm/i915: don't setup hdmi for port D edp in ddi_init
- LP: #1207977
* drm/i915: Preserve the DDI_A_4_LANES bit from the bios
- LP: #1207977
* drm/radeon/hdmi: make sure we have an afmt block assigned
- LP: #1207977
* drm/radeon: allocate SA bo in the requested domain
- LP: #1207977
* drm/radeon: allow selection of alignment in the sub-allocator
- LP: #1207977
* ACPI / memhotplug: Fix a stale pointer in error path
- LP: #1207977
* PM / Sleep: avoid 'autosleep' in shutdown progress
- LP: #1207977
* ext4: fix error handling in ext4_ext_truncate()
- LP: #1207977
* radeon kms: do not flush uninitialized hotplug work
- LP: #1207977
* ALSA: asihpi: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: atiixp: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: 6fire: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: ua101: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: usx2y: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ALSA: pxa2xx: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ASoC: atmel: Fix unlocked snd_pcm_stop() call
- LP: #1207977
* ASoC: s6000: Fix unlocked snd_pcm_stop() call
-...
Changed in linux-lowlatency (Ubuntu Raring): | |
status: | Fix Committed → Fix Released |
Launchpad Janitor (janitor) wrote : | #18 |
This bug was fixed in the package linux - 3.5.0-40.62
---------------
linux (3.5.0-40.62) quantal; urgency=low
[ Brad Figg ]
* [Config] KUSER_HELPERS = Y
* Release Tracking Bug
- LP: #1215129
linux (3.5.0-40.61) quantal; urgency=low
[ Andy Whitcroft ]
* [Packaging] supply perf with appropriate prefix to ensure use of local
config
- LP: #1206200
- CVE-2013-1060
[ John Johansen ]
* Revert "SAUCE: (no-up) AppArmor: Disable Add PR_{GET,
to prevent execve from granting privs"
- LP: #1202161
[ Joseph Salisbury ]
* SAUCE: (no-up) intel_ips: blacklist ASUSTek G60JX laptops
- LP: #1210848
[ Stefan Bader ]
* (debian) Abort build on unresolved symbols
- LP: #1166197
[ Tim Gardner ]
* [Config] Include rbd and kvm in the virtual inclusion list
- LP: #1206961
[ Upstream Kernel Changes ]
* ALSA: usb: Parse UAC2 extension unit like for UAC1
- LP: #1212430
* Btrfs: fix hash overflow handling
- LP: #1091187, #1091188
- CVE-2012-5375
* [media] media: dmxdev: remove dvb_ringbuffer_
- LP: #1214956
* writeback: Fix periodic writeback after fs mount
- LP: #1214956
* nfsd4: fix decoding of compounds across page boundaries
- LP: #1214956
* ARM: shmobile: emev2 GIO3 resource fix
- LP: #1214956
* uprobes: Fix return value in error handling path
- LP: #1214956
* tracing: Fix irqs-off tag display in syscall tracing
- LP: #1214956
* [CIFS] use sensible file nlink values if unprovided
- LP: #1214956
* ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
- LP: #1214956
* ASoC: sglt5000: Fix SGTL5000_
- LP: #1214956
* [SCSI] megaraid_sas: fix memory leak if SGL has zero length entries
- LP: #1214956
* iscsi-target: Fix tfc_tpg_
- LP: #1214956
* dm mpath: fix ioctl deadlock when no paths
- LP: #1214956
* dm verity: fix inability to use a few specific devices sizes
- LP: #1214956
* lockd: protect nlm_blocked access in nlmsvc_
- LP: #1214956
* ext4: don't show usrquota/grpquota twice in /proc/mounts
- LP: #1214956
* perf: Clone child context from parent context pmu
- LP: #1214956
* perf: Remove WARN_ON_ONCE() check in __perf_
scenario
- LP: #1214956
* perf: Fix perf_lock_
- LP: #1214956
* ext4: don't allow ext4_free_blocks() to fail due to ENOMEM
- LP: #1214956
* drm/radeon/hdmi: make sure we have an afmt block assigned
- LP: #1214956
* ACPI / memhotplug: Fix a stale pointer in error path
- LP: #1214956
* PM / Sleep: avoid 'autosleep' in shutdown progress
- LP: #1214956
* radeon kms: do not flush uninitialized hotplug work
- LP: #1214956
* svcrdma: underflow issue in decode_write_list()
- LP: #1214956
* ALSA: asihpi: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: atiixp: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: 6fire: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: ua101: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: usx...
Changed in linux (Ubuntu Quantal): | |
status: | Fix Committed → Fix Released |
Changed in linux-lowlatency (Ubuntu Quantal): | |
status: | Fix Committed → Fix Released |
Launchpad Janitor (janitor) wrote : | #19 |
This bug was fixed in the package linux-lowlatency - 3.5.0-40.41
---------------
linux-lowlatency (3.5.0-40.41) quantal; urgency=low
[ Kaj Ailomaa ]
* rebase to Ubuntu-3.5.0-40.62
* Release Tracking Bug
- LP: #1215279
[ Ubuntu: 3.5.0-40.62 ]
* [Config] KUSER_HELPERS = Y
* Release Tracking Bug
- LP: #1215129
[ Ubuntu: 3.5.0-40.61 ]
* [Packaging] supply perf with appropriate prefix to ensure use of local
config
- LP: #1206200
- CVE-2013-1060
* Revert "SAUCE: (no-up) AppArmor: Disable Add PR_{GET,
to prevent execve from granting privs"
- LP: #1202161
* SAUCE: (no-up) intel_ips: blacklist ASUSTek G60JX laptops
- LP: #1210848
* (debian) Abort build on unresolved symbols
- LP: #1166197
* [Config] Include rbd and kvm in the virtual inclusion list
- LP: #1206961
* ALSA: usb: Parse UAC2 extension unit like for UAC1
- LP: #1212430
* Btrfs: fix hash overflow handling
- LP: #1091187, #1091188
- CVE-2012-5375
* [media] media: dmxdev: remove dvb_ringbuffer_
- LP: #1214956
* writeback: Fix periodic writeback after fs mount
- LP: #1214956
* nfsd4: fix decoding of compounds across page boundaries
- LP: #1214956
* ARM: shmobile: emev2 GIO3 resource fix
- LP: #1214956
* uprobes: Fix return value in error handling path
- LP: #1214956
* tracing: Fix irqs-off tag display in syscall tracing
- LP: #1214956
* [CIFS] use sensible file nlink values if unprovided
- LP: #1214956
* ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
- LP: #1214956
* ASoC: sglt5000: Fix SGTL5000_
- LP: #1214956
* [SCSI] megaraid_sas: fix memory leak if SGL has zero length entries
- LP: #1214956
* iscsi-target: Fix tfc_tpg_
- LP: #1214956
* dm mpath: fix ioctl deadlock when no paths
- LP: #1214956
* dm verity: fix inability to use a few specific devices sizes
- LP: #1214956
* lockd: protect nlm_blocked access in nlmsvc_
- LP: #1214956
* ext4: don't show usrquota/grpquota twice in /proc/mounts
- LP: #1214956
* perf: Clone child context from parent context pmu
- LP: #1214956
* perf: Remove WARN_ON_ONCE() check in __perf_
scenario
- LP: #1214956
* perf: Fix perf_lock_
- LP: #1214956
* ext4: don't allow ext4_free_blocks() to fail due to ENOMEM
- LP: #1214956
* drm/radeon/hdmi: make sure we have an afmt block assigned
- LP: #1214956
* ACPI / memhotplug: Fix a stale pointer in error path
- LP: #1214956
* PM / Sleep: avoid 'autosleep' in shutdown progress
- LP: #1214956
* radeon kms: do not flush uninitialized hotplug work
- LP: #1214956
* svcrdma: underflow issue in decode_write_list()
- LP: #1214956
* ALSA: asihpi: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: atiixp: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: 6fire: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: ua101: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: usx2y: Fix unlocked snd_pcm_sto...
Changed in linux-lowlatency (Ubuntu Quantal): | |
status: | Fix Committed → Fix Released |
Launchpad Janitor (janitor) wrote : | #21 |
This bug was fixed in the package linux-ti-omap4 - 3.5.0-232.48
---------------
linux-ti-omap4 (3.5.0-232.48) quantal; urgency=low
* Release Tracking Bug
- LP: #1215276
[ Paolo Pisati ]
* SAUCE: fixup between 6288223947 and db7981259
* rebased on Ubuntu-3.5.0-40.62
[ Ubuntu: 3.5.0-40.62 ]
* [Config] KUSER_HELPERS = Y
* Release Tracking Bug
- LP: #1215129
[ Ubuntu: 3.5.0-40.61 ]
* [Packaging] supply perf with appropriate prefix to ensure use of local
config
- LP: #1206200
- CVE-2013-1060
* Revert "SAUCE: (no-up) AppArmor: Disable Add PR_{GET,
to prevent execve from granting privs"
- LP: #1202161
* SAUCE: (no-up) intel_ips: blacklist ASUSTek G60JX laptops
- LP: #1210848
* (debian) Abort build on unresolved symbols
- LP: #1166197
* [Config] Include rbd and kvm in the virtual inclusion list
- LP: #1206961
* ALSA: usb: Parse UAC2 extension unit like for UAC1
- LP: #1212430
* Btrfs: fix hash overflow handling
- LP: #1091187, #1091188
- CVE-2012-5375
* [media] media: dmxdev: remove dvb_ringbuffer_
- LP: #1214956
* writeback: Fix periodic writeback after fs mount
- LP: #1214956
* nfsd4: fix decoding of compounds across page boundaries
- LP: #1214956
* ARM: shmobile: emev2 GIO3 resource fix
- LP: #1214956
* uprobes: Fix return value in error handling path
- LP: #1214956
* tracing: Fix irqs-off tag display in syscall tracing
- LP: #1214956
* [CIFS] use sensible file nlink values if unprovided
- LP: #1214956
* ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
- LP: #1214956
* ASoC: sglt5000: Fix SGTL5000_
- LP: #1214956
* [SCSI] megaraid_sas: fix memory leak if SGL has zero length entries
- LP: #1214956
* iscsi-target: Fix tfc_tpg_
- LP: #1214956
* dm mpath: fix ioctl deadlock when no paths
- LP: #1214956
* dm verity: fix inability to use a few specific devices sizes
- LP: #1214956
* lockd: protect nlm_blocked access in nlmsvc_
- LP: #1214956
* ext4: don't show usrquota/grpquota twice in /proc/mounts
- LP: #1214956
* perf: Clone child context from parent context pmu
- LP: #1214956
* perf: Remove WARN_ON_ONCE() check in __perf_
scenario
- LP: #1214956
* perf: Fix perf_lock_
- LP: #1214956
* ext4: don't allow ext4_free_blocks() to fail due to ENOMEM
- LP: #1214956
* drm/radeon/hdmi: make sure we have an afmt block assigned
- LP: #1214956
* ACPI / memhotplug: Fix a stale pointer in error path
- LP: #1214956
* PM / Sleep: avoid 'autosleep' in shutdown progress
- LP: #1214956
* radeon kms: do not flush uninitialized hotplug work
- LP: #1214956
* svcrdma: underflow issue in decode_write_list()
- LP: #1214956
* ALSA: asihpi: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: atiixp: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: 6fire: Fix unlocked snd_pcm_stop() call
- LP: #1214956
* ALSA: ua101: Fix unlocked snd_pcm_stop() call
- LP...
Changed in linux-ti-omap4 (Ubuntu Quantal): | |
status: | Fix Committed → Fix Released |
Changed in linux-ti-omap4 (Ubuntu Raring): | |
status: | Fix Committed → Fix Released |
Changed in linux-ti-omap4 (Ubuntu): | |
status: | Fix Committed → Fix Released |
Alejandro Mery (amery) wrote : | #24 |
still present in trusty....
Joseph Salisbury (jsalisbury) wrote : | #25 |
@Alejandro, this was marked as fix released a while ago on prior releases. You may want to open a new bug for Trusty and you can reference this bug.
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1202161
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.