{"id":121343,"date":"2025-01-15T09:46:00","date_gmt":"2025-01-15T07:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft"},"modified":"2025-01-15T09:46:00","modified_gmt":"2025-01-15T07:46:00","slug":"v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","title":{"rendered":"I den kommende version af Linux-kernen 6.13 er der identificeret en fejl for\u00e5rsaget af en Microsoft-medarbejders kode.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linus Torvalds havde til hensigt at offentligg\u00f8re kernen Linux 6.13 denne s\u00f8ndag, men testningen af gren 6.13 vil h\u00f8jst sandsynligt blive forl\u00e6nget med en uge p\u00e5 grund af stabilitetsproblemer i de \u00e6ndringer, som en medarbejder fra Microsoft har forberedt og f\u00e5et godkendt i gren 6.13 i november. Det bem\u00e6rkes ogs\u00e5, at patchen, der for\u00e5rsagede nedbruddet, blev indsendt p\u00e5 en ikke-standard m\u00e5de - men blev accepteret, selvom den ikke modtog nogen bekr\u00e6ftelse (ACK) fra vedligeholderne af x86-arkitekturen, hvilket udg\u00f8r et brud p\u00e5 de almindelige praksisser.    <\/p>\n<p>Patchen tilf\u00f8jede muligheden for at bruge store hukommelsessider i ROX (Read Only Execute) tilstand under tildeling af hukommelse, der er beregnet til at rumme eksekverbar kode. ROX tillader anvendelse af hukommelse med eksekverbar kode i kun l\u00e6seformat, hvilket g\u00f8r det sv\u00e6rere at udnytte visse s\u00e5rbarheder. I kernen 6.13 var brugen af cache til store eksekverbare hukommelsessider, reflekteret som ROX, som standard aktiveret for eksekverbar kode i moduler p\u00e5 x86_64-systemer. \u00c6ndringen l\u00f8ste problemet med kortl\u00e6gning i ROX-tilstand af sider for endnu ikke fuldt dannet eksekverbar kode og gjorde det muligt at undg\u00e5 midlertidig repaminering af ROX-sider til skrivemodus, indtil klarg\u00f8ringen af kernemoduler var afsluttet.      <\/p>\n<p>P\u00e5 den afsluttende testfase af kernen 6.13 afsl\u00f8rede en ingeni\u00f8r fra Intel en fejl, der forhindrede kernen i korrekt at v\u00e6kke sig fra dvaletilstand p\u00e5 visse b\u00e6rbare computere med Intel-processorer (for eksempel CPU'er baseret p\u00e5 Alder Lake mikroarkitektur). Fejlen optr\u00e5dte ved kompilering af kernen med Clang-kompilatoren med aktiveret CFI (Control Flow Integrity), der blokerer for brud p\u00e5 den normale udf\u00f8relsesorden (control flow) som f\u00f8lge af anvendelse af exploits, der \u00e6ndrer de funktioner, som er lagret i hukommelsen. Som en midlertidig l\u00f8sning foreslog vedligeholderne fra Intel og AMD, der er ansvarlige for x86-arkitekturen, at deaktivere brugen af EXECMEM_ROX i kernen 6.13, indtil en omfattende patch kan forberedes og testes for at l\u00f8se problemet (den f\u00f8rste l\u00f8sning l\u00f8ste ikke problemet).<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62555\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u043d\u0430\u043c\u0435\u0440\u0435\u0432\u0430\u043b\u0441\u044f \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u0442\u044c \u0440\u0435\u043b\u0438\u0437 \u044f\u0434\u0440\u0430 Linux 6.13 \u0432 \u044d\u0442\u043e \u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435, \u043d\u043e \u0441\u043a\u043e\u0440\u0435\u0435 \u0432\u0441\u0435\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 6.13 \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u043e\u0434\u043b\u0435\u043d\u043e \u043d\u0430 \u043d\u0435\u0434\u0435\u043b\u044e \u0438\u0437-\u0437\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e \u0432 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f\u0445, \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u043e\u0442\u0440\u0443\u0434\u043d\u0438\u043a\u043e\u043c Microsoft \u0438 \u043f\u0440\u0438\u043d\u044f\u0442\u044b\u0445 \u0432 \u0432\u0435\u0442\u043a\u0443 6.13 \u0432 \u043d\u043e\u044f\u0431\u0440\u0435. \u0414\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043e\u0442\u043c\u0435\u0447\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u043f\u0430\u0442\u0447, \u0441\u0442\u0430\u0432\u0448\u0438\u0439 \u043f\u0440\u0438\u0447\u0438\u043d\u043e\u0439 \u0441\u0431\u043e\u044f, \u0431\u044b\u043b \u043f\u043e\u0434\u0430\u043d \u043d\u0435\u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e &#8212; \u043d\u043e \u0431\u044b\u043b \u043f\u0440\u0438\u043d\u044f\u0442, \u0445\u043e\u0442\u044f \u043d\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u043d\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121343","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041b\u0438\u043d\u0443\u0441 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\u00e6ndringer.","canonical_url":"https:\/\/prohoster.info\/da\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 \u0433\u043e\u0442\u043e\u0432\u044f\u0449\u0435\u043c\u0441\u044f \u0432 \u0440\u0435\u043b\u0438\u0437\u0443 \u044f\u0434\u0440\u0435 Linux 6.13 \u0432\u044b\u044f\u0432\u043b\u0435\u043d \u0441\u0431\u043e\u0439, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u044b\u0439 \u043a\u043e\u0434\u043e\u043c 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