On Fri, Feb 2, 2018 at 4:08 AM, <abejon...@gmail.com> wrote:

> Hi all,
> The BeagleBone Green Wireless uses an ARM Cortex-A8. So  it has the
> variance 1 and 2
> https://developer.arm.com/support/security-update
>
> There are three main variants of the exploits, as detailed by Google in
> their blogpost, that explain in detail the mechanisms:
>
> Variant 1: bounds check bypass (CVE-2017-5753)
> Variant 2: branch target injection (CVE-2017-5715)
> Variant 3: rogue data cache load (CVE-2017-5754)
> In addition, Arm has included information on a related variant to 3, noted
> as 3a, in the table below.
>
> Follow the steps below to determine if there is any vulnerability for your
> devices and, if vulnerable, then the mitigation mechanisms.
>
> Step 1
>
> Check the table below to determine if you have an affected processor.
>
> Only affected cores are listed, all other Arm cores are NOT affected.
> No indicates not affected by the particular variant.
> Yes indicates affected by the particular variant but has a mitigation
> (unless otherwise stated).
> ProcessorVariant 1variant 2variant 3variant 3a
> Cortex-A8 Yes (under review) Yes No No
>
>
>
> They update with more information recently with this link
> For Cortex-A8, Cortex-A9, and Cortex-A15, please apply the patches
> available at https://git.kernel.org/pub/scm/linux/kernel/git/arm64/
> linux.git/log/?h=kpti
>
> The problem is that this patch can apply only for the kernel 4.9 and after
> kernels, however, the BBGW only can use the kernel 4.4, because if you use
> a different kernel you are going to have this error message
>
> [  310.837199] wlcore: ERROR error getting static data
> [  310.888675] wlcore: ERROR firmware boot failed despite 3 retries
> [  317.196091] wlcore: ERROR Your WiFi FW version (8.9.0.0.17) is invalid.
> [  317.196091] Please use at least FW 8.9.*.*.58.
> [  317.196091] You can get the latest firmwares at:
> [  317.196091] git://git.ti.com/wilink8-wlan/wl18xx_fw.git
>


This is a duplicate thread:

https://groups.google.com/d/msg/beaglebone/yC5UwuiQvbQ/0OVTg4PMAAAJ

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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