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Old 10-13-2010, 09:03 AM
AceLan Kao
 
Default intel_ips: potential null dereference

SRU Justification:

Impact: There is a potential NULL pointer dereference bug in the intel_ips
module, once it happens, system will encounter an OOPS and prevent system
from entering X window.

Fix: Prevent the NULL pointer to be used, if no CPUID matches.

Testcase: With the patch, the system can boot into X window without any error
msg, or user will get a black and blank screen.

The bug reporter and I can confirm this patch fixed the problem.

BugLink: https://bugs.launchpad.net/linux/+bug/648631

The following changes since commit 37ee3e07049bb895e3a6dd852537e6eecf08f9e9:

Linux 2.6.35.7 (2010-10-11 13:43:46 -0700)

are available in the git repository at:
git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631

Dan Carpenter (1):
intel_ips: potential null dereference

drivers/platform/x86/intel_ips.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

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Old 10-13-2010, 02:21 PM
Tim Gardner
 
Default intel_ips: potential null dereference

On 10/13/2010 03:03 AM, AceLan Kao wrote:
> git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631

This looks a lot like something we should be getting from stable. Has it
been queued? If not, then you should request it. In the meantime, this
is a direct cherry-pick of 52d7ee558d3babb4918eed6769f593adc1b6616e

Acked-by: Tim Gardner <tim.gardner@canonical.com>

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Old 10-13-2010, 02:31 PM
Brad Figg
 
Default intel_ips: potential null dereference

On 10/13/2010 02:03 AM, AceLan Kao wrote:
> SRU Justification:
>
> Impact: There is a potential NULL pointer dereference bug in the intel_ips
> module, once it happens, system will encounter an OOPS and prevent system
> from entering X window.
>
> Fix: Prevent the NULL pointer to be used, if no CPUID matches.
>
> Testcase: With the patch, the system can boot into X window without any error
> msg, or user will get a black and blank screen.
>
> The bug reporter and I can confirm this patch fixed the problem.
>
> BugLink: https://bugs.launchpad.net/linux/+bug/648631
>
> The following changes since commit 37ee3e07049bb895e3a6dd852537e6eecf08f9e9:
>
> Linux 2.6.35.7 (2010-10-11 13:43:46 -0700)
>
> are available in the git repository at:
> git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631
>
> Dan Carpenter (1):
> intel_ips: potential null dereference
>
> drivers/platform/x86/intel_ips.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>

Acked-by: Brad Figg <brad.figg@canonical.com>

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Old 10-14-2010, 11:11 AM
Matthew Garrett
 
Default intel_ips: potential null dereference

On Wed, Oct 13, 2010 at 08:21:15AM -0600, Tim Gardner wrote:
> On 10/13/2010 03:03 AM, AceLan Kao wrote:
> > git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631
>
> This looks a lot like something we should be getting from stable. Has it
> been queued? If not, then you should request it. In the meantime, this
> is a direct cherry-pick of 52d7ee558d3babb4918eed6769f593adc1b6616e

The IPS driver only went upstream during .36, so there's no stable
release to be updated.

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Old 10-14-2010, 12:01 PM
Tim Gardner
 
Default intel_ips: potential null dereference

On 10/14/2010 05:11 AM, Matthew Garrett wrote:
> On Wed, Oct 13, 2010 at 08:21:15AM -0600, Tim Gardner wrote:
>> On 10/13/2010 03:03 AM, AceLan Kao wrote:
>>> git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631
>>
>> This looks a lot like something we should be getting from stable. Has it
>> been queued? If not, then you should request it. In the meantime, this
>> is a direct cherry-pick of 52d7ee558d3babb4918eed6769f593adc1b6616e
>
> The IPS driver only went upstream during .36, so there's no stable
> release to be updated.
>

Ah, right. I forgot that Leann backported this driver.

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Old 10-21-2010, 06:34 PM
Brad Figg
 
Default intel_ips: potential null dereference

On 10/13/2010 02:03 AM, AceLan Kao wrote:
> SRU Justification:
>
> Impact: There is a potential NULL pointer dereference bug in the intel_ips
> module, once it happens, system will encounter an OOPS and prevent system
> from entering X window.
>
> Fix: Prevent the NULL pointer to be used, if no CPUID matches.
>
> Testcase: With the patch, the system can boot into X window without any error
> msg, or user will get a black and blank screen.
>
> The bug reporter and I can confirm this patch fixed the problem.
>
> BugLink: https://bugs.launchpad.net/linux/+bug/648631
>
> The following changes since commit 37ee3e07049bb895e3a6dd852537e6eecf08f9e9:
>
> Linux 2.6.35.7 (2010-10-11 13:43:46 -0700)
>
> are available in the git repository at:
> git://kernel.ubuntu.com/acelan/ubuntu-maverick.git lp648631
>
> Dan Carpenter (1):
> intel_ips: potential null dereference
>
> drivers/platform/x86/intel_ips.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>

Applied to Maverick master.

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