AW: [PATCH Backport to stable/linux-4.14.y] make 'user_access_begin()' do 'access_ok()'

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>>
>> Fixes CVE-2018-20669
>> Backported from v5.0-rc1
>> Patch 1/1
>
> Also, that cve was "supposed" to already be fixed in the 4.19.13 kernel
> release for some reason, and it's a drm issue, not a core access_ok()
> issue.
>
> So why is this needed for 4.14?
>
See https://access.redhat.com/security/cve/cve-2018-20669
Looks like Linus' fix was attacking this at the root cause, not only for DRM.

Also, i use https://www.linuxkernelcves.com/ as a research source,
and they claim that CVE not fixed in 4.19.
(and i'll check for the other LTS kernels as well)

>>
>> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
>
> No s-o-by from you?
Ops. Will add this in a resend.

>> Want to give this work back to the community, as 4.14 is a SLTS.
>
> What is "SLTS"?
Super Long Term Supported kernel - thanks to guys like you :-)
4.14 really is that (Jan. 2024, as of https://www.kernel.org/category/releases.html)

>
> thanks,
>
> greg k-h

Thanks, and i have some other patches backported to 4.14 as CVE fixes,
which i'll propose in the next hours.

BR
Carsten
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