{"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\/pl\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","title":{"rendered":"W nadchodz\u0105cym wydaniu j\u0105dra Linux 6.13 wykryto b\u0142\u0105d spowodowany kodem pracownika Microsoftu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linus Torvalds zamierza\u0142 opublikowa\u0107 wydanie j\u0105dra Linux 6.13 w t\u0119 niedziel\u0119, ale najprawdopodobniej testy ga\u0142\u0119zi 6.13 zostan\u0105 przed\u0142u\u017cone o tydzie\u0144 z powodu problem\u00f3w ze stabilno\u015bci\u0105 w zmianach przygotowanych przez pracownika Microsoft i zaakceptowanych w ga\u0142\u0119zi 6.13 w listopadzie. Dodatkowo zauwa\u017cono, \u017ce \u0142atka, kt\u00f3ra spowodowa\u0142a awari\u0119, zosta\u0142a zg\u0142oszona w spos\u00f3b niestandardowy \u2014 ale zosta\u0142a przyj\u0119ta, mimo \u017ce nie otrzyma\u0142a \u017cadnego potwierdzenia (ACK) od maintainer\u00f3w architektury x86, co jest naruszeniem og\u00f3lnie przyj\u0119tych praktyk. <\/p>\n

\u0141atka dodawa\u0142a mo\u017cliwo\u015b\u0107 u\u017cywania du\u017cych stron pami\u0119ci w trybie ROX (Read Only Execute) przy przydzielaniu pami\u0119ci przeznaczonej na kod wykonywalny. ROX pozwala na u\u017cywanie pami\u0119ci z kodem wykonywalnym w trybie tylko do odczytu, co utrudnia wykorzystanie niekt\u00f3rych luk. W j\u0105drze 6.13 dla kodu wykonywalnego modu\u0142\u00f3w na systemach x86_64 domy\u015blnie w\u0142\u0105czono u\u017cywanie du\u017cych stron pami\u0119ci wykonywalnej, odzwierciedlonych jako ROX. Zmiana rozwi\u0105zywa\u0142a problem z mapowaniem stron w trybie ROX dla jeszcze ca\u0142kowicie nie sformu\u0142owanego kodu wykonywalnego i pozwala\u0142a na omini\u0119cie tymczasowego repaminowania stron ROX w tryb zapisu, a\u017c do zako\u0144czenia przygotowa\u0144 modu\u0142\u00f3w j\u0105dra do pracy. <\/p>\n

Na ko\u0144cowym etapie testowania j\u0105dra 6.13 in\u017cynier z firmy Intel zidentyfikowa\u0142 b\u0142\u0105d, kt\u00f3ry uniemo\u017cliwia\u0142 j\u0105dru prawid\u0142owe wybudzenie si\u0119 z trybu u\u015bpienia na niekt\u00f3rych laptopach z procesorami Intel (na przyk\u0142ad z CPU opartymi na mikroarchitekturze Alder Lake). B\u0142\u0105d wyst\u0119powa\u0142 przy kompilacji j\u0105dra przy u\u017cyciu kompilatora Clang z w\u0142\u0105czonym trybem ochrony CFI (Control Flow Integrity), kt\u00f3ry blokuje naruszenia normalnego porz\u0105dku wykonywania (control flow) w wyniku zastosowania exploit\u00f3w, kt\u00f3re zmieniaj\u0105 przechowywane w pami\u0119ci wska\u017aniki do funkcji. Jako tymczasowe rozwi\u0105zanie maintainerzy z firm Intel i AMD odpowiedzialni za architektur\u0119 x86, zaproponowali wy\u0142\u0105czenie u\u017cycia EXECMEM_ROX w j\u0105drze 6.13, zanim zostanie przygotowana i przetestowana pe\u0142na \u0142atka rozwi\u0105zuj\u0105ca problem (pierwsza wersja poprawki nie rozwi\u0105za\u0142a problemu).
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 — \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 […]<\/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\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47W nadchodz\u0105cej wersji j\u0105dra Linux 6.13 wykryto b\u0142\u0105d spowodowany kodem pracownika Microsoft | ProHoster","description":"Linus Torvalds zamierza\u0142 opublikowa\u0107 wersj\u0119 j\u0105dra Linux 6.13 w t\u0119 niedziel\u0119, ale prawdopodobnie testowanie ga\u0142\u0119zi 6.13 zostanie przed\u0142u\u017cone o tydzie\u0144 z powodu problem\u00f3w z stabilno\u015bci\u0105 w zmianach, 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