This is a re-send, because indeed the planned changed subject (just below) got lost. All the rest of the email is same as the previous. Pls. if you do reply, use this one with the changed subject. --- I changed the subject because it's the (still) hot freshly known spectre-meltdown security issue [1] that regards the entire Devuan OS's (as any other OSes) reliability (but my side of the interest/desire lies mostly in getting the necessary mitigations into the grsecunoff kernel)
On 180204-00:05+0000, Miroslav Rovis wrote: > On 180203-23:35+0000, Miroslav Rovis wrote: > ... > > But I don't have the toolchain to support retpoline. Namely, the first > > thing at the onset of: > > > > fakeroot make deb-pkg > > > ... > > arch/x86/Makefile:191: CONFIG_RETPOLINE=y, but not supported by the > > compiler. Toolchain update recommended. > > > > Anybody already had this kind of issue, and has a few quick tips to tell on > > how to update the toolchain (or other necessary details)? > > I found: > https://gitlab.com/jimdigriz/linux/commit/b8b9ce4b5aec8de9e23cabb0a26b78641f9ab1d6 > and it appears that it's fine to compile it disregarding that warning. > > (And I'll offer retpoline-patched 4.9.74 on > https://www.croatiafidelis.hr/gnu/deb/linux-deb-grsec-current/ by tomorrow, I > hope.) which I did, and in the link I gave there there's more talk, and also can be seen how linux-image-4.14.0-0.bpo.3-amd64 and my 4.9.74-unofficial+grsec180204-21 compare: https://user-images.githubusercontent.com/7559858/35819129-bb65a63c-0a99-11e8-804a-caa9f6cc1719.png https://user-images.githubusercontent.com/7559858/35819137-c3195090-0a99-11e8-81de-d560c4723857.png all of which is in comment: Spectre mitigation (retpoline) #26 https://github.com/minipli/linux-unofficial_grsec/issues/26#issuecomment-363157180 Meltdown support for grsecunoff is being developed and is at an unknown stage, In comment of Jan 9 2018: KPTI backport conflicts #25 https://github.com/minipli/linux-unofficial_grsec/issues/25#issuecomment-355921197 minipli wrote: > Expect it to be weeks/months/never. It's a pretty invasive change > conflicting with a lot of PaX. I'm betting minipli *will* make it... He's currently the best hope for what remained of grsec. ( There's been, and still is, an attempt to develop the entire hardened-kernel, without the GNU/Linux kernel continuing to be under the whims of who regards security bugs like any other bugs, along with, after spender and PaX Team left --unable to tollerate any more the ripoff of their code by Google--, [along with] security being basically under total control of the already mentioned, and just repeated the name of, unofficial world's top spy firm. [There's been, and still is, an attempt to develop the entire hardened-kernel,] separately, organizationally ab ovo, at: https://github.com/copperhead/linux-hardened if I understand correctly, but as here stated: https://github.com/minipli/linux-unofficial_grsec/issues/25#issuecomment-358370154 > not enough people actually were interested ) Questions for anybody that can tell more on the issues are, on my part, primarily: How come I couldn't get the amd64-microcode for my machines, as I presented in the screencast of specter-meltdown-checker.sh and in comments of today in issue #26 linked above? Another question is: I tried, but couldn't get amd64-microcode in Devuan, by apt-get, version 3.20171205.1, and so I got it from Debian (where it is the current offer): https://packages.debian.org/sid/amd64-microcode Did I misconf'd something or is it not available in Devuan. Also, it didn't work for my machines (explained in that minipli issue above), any idea why, or where to look for reasons? And more there will/would be to ask, and maybe to test (as I'm not really a dev, but can follow and test, mostly), time and strength permitting. Regards! --- [1] but existing and extremely likely known to exploit- writers and users months before it was discovered by the Austrian guys mid-2017 (and taken credit of over by the world's top commercial unofficial spy agency the Schmoog, just like they took credit for the Heartbleed, as if they discovered both those vuln issues, and instead they had only, in both cases, spied on people who were discovering it, to be able to apportion half of the credit to themselves: I could almost bet on this hypothesis anything you want... it's so terribly very likely the truth of it! -- Miroslav Rovis Zagreb, Croatia https://www.CroatiaFidelis.hr
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