{"id":3724,"date":"2018-02-13T11:50:45","date_gmt":"2018-02-13T11:50:45","guid":{"rendered":"https:\/\/blog.mageia.org\/en\/?p=3724"},"modified":"2018-02-14T12:55:58","modified_gmt":"2018-02-14T12:55:58","slug":"spectra-meltdown-mitigation-update","status":"publish","type":"post","link":"https:\/\/blog.mageia.org\/en\/2018\/02\/13\/spectra-meltdown-mitigation-update\/","title":{"rendered":"Spectre-Meltdown mitigation update"},"content":{"rendered":"<p>This update comes to us courtesy of <strong>tmb<\/strong>, our kernel magician:<\/p>\n<p>Since we <a href=\"http:\/\/advisories.mageia.org\/MGASA-2018-0125.html\">released 4.14.18 yesterday<\/a>,\u00a0we now are in pretty good shape with the mitigations, especially on x86_64. We now have bits in place for Spectre v1, v2 and Meltdown.<\/p>\n<p>Of course over the coming weeks\/months there will be more follow-up fixes upstream to cover corner cases, missed fixes and improvements for all of this&#8230;<\/p>\n<p>And we still need Intel and AMD to release microcodes so hardware vendors can release updated BIOS\/EFI firmwares and to the public so we can provide microcode updates in case of vendors not providing new BIOS\/EFI firmwares.<\/p>\n<p>Oh, and for those that like to check \ud83d\ude42 The official way of checking the kernel status is:<\/p>\n<p><code>grep . \/sys\/devices\/system\/cpu\/vulnerabilities\/*<\/code><\/p>\n<p>We still lack meltdown support for 32bit in mga6, but we have now (Feb 9th) merged the upstream suggested patches for it in Cauldron, so a kernel with those patches will land in testing later today along with an update to 4.14.19<\/p>\n<p>It still lacks some performance related bits, but we are getting there.<\/p>\n<p>Many thanks to tmb for taking the time to bring us this update!<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Edit<\/strong>: we corrected the grep command due to the helpful comments.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This update comes to us courtesy of tmb, our kernel magician: Since we released 4.14.18 yesterday,\u00a0we now are in pretty good shape with the mitigations, especially on x86_64. We now have bits in place for Spectre v1, v2 and Meltdown. &hellip; <a href=\"https:\/\/blog.mageia.org\/en\/2018\/02\/13\/spectra-meltdown-mitigation-update\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[159],"tags":[],"class_list":["post-3724","post","type-post","status-publish","format-standard","hentry","category-security"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p159kA-Y4","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/posts\/3724","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/comments?post=3724"}],"version-history":[{"count":7,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/posts\/3724\/revisions"}],"predecessor-version":[{"id":3733,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/posts\/3724\/revisions\/3733"}],"wp:attachment":[{"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/media?parent=3724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/categories?post=3724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.mageia.org\/en\/wp-json\/wp\/v2\/tags?post=3724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}