Re: Meltdown / Spectre

[Mark H Weaver]

Mark H Weaver <address@hidden> writes:

> Leo Famulari <address@hidden> writes:
>
>> The Spectre bugs have to be fixed per-application for now. As far as I
>> know, we haven't made any related changes to packages besides
>> linux-libre.
>>
>> Mozilla has released an update that is supposed to mitigate the
>> vulnerability but I don't if they'll be porting it back to the extended
>> support release that Icecat is based on.
>
> I just backported the Spectre mitigation from Firefox 57.0.4 to IceCat,
> and pushed it to master here:
>
>   
> https://git.savannah.gnu.org/cgit/guix.git/commit/?id=c23243fccd4f73430ca06a862acd33c020c8ed17

I just followed this up with a Spectre mitigation for WebKitGTK+
backported from upstream WebKit:

  
https://git.savannah.gnu.org/cgit/guix.git/commit/?id=56804398a94bea941183ae4ed29d2a9f82069a6f

Note that WebKitGTK+ had already reduced the resolution of
performance.now() to 100 microseconds over a year ago:

  https://bugs.webkit.org/show_bug.cgi?id=165503

       Mark