[Users] Dirty COW

[Vasily Averin]

Dear all,
output /proc/meminfo was changed in 042stab120.x kernels.
we had claims that free inside centos7.2 containers showed used=0 in some situations.

Thank you,
	Vasily Averin

On 27.10.2016 14:36, Nick Knutov wrote:
> And it looks something is broken with memory, even with 120.5 - I see a lot of containers became with memory usage == memory limit in our monitoring graphs and `top` says free memory is 0 bytes now inside CT
> 
> 
> 25.10.2016 19:01, Dmitry Mishin пишет:
>> For those who missed an announce -
>> https://openvz.org/Download/kernel/rhel6/042stab120.3 is available since
>> 22 Oct.
>>
>> Thank you,
>> Dmitry.
>>
>> On 22/10/16 16:07, "users-bounces at openvz.org on behalf of Scott Dowdle"
>> <users-bounces at openvz.org on behalf of dowdle at montanalinux.org> wrote:
>>
>>> Greetings,
>>>
>>> ----- Original Message -----
>>>>> According to the Red Hat bugzilla page
>>>>> (https://bugzilla.redhat.com/show_bug.cgi?id=1384344#c13), they
>>>>> claim that EL5 and EL6 are not vulnerable
>>>> No, they correctly claim the opposite.
>>> Looking at that URL now (and remember what used to be there), there are a
>>> number of comments that have been deleted... and in comment #33 they do
>>> say:
>>>
>>> "This issue affects the Linux kernel packages as shipped with Red Hat
>>> Enterprise Linux 5 6,7 and MRG-2."
>>>
>>> In some of the comments that were deleted they were claiming 5 and 6
>>> weren't vulnerable but as you said, that was only a misunderstanding due
>>> to some earlier PoC not working.
>>>
>>> Thanks for the clarification.
>>>
>>> TYL,
>>> -- 
>>> Scott Dowdle
>>> 704 Church Street
>>> Belgrade, MT 59714
>>> (406)388-0827 [home]
>>> (406)994-3931 [work]
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>>
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>