{"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\/it\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","title":{"rendered":"Nel kernel Linux 6.13 in fase di rilascio \u00e8 stato identificato un bug causato dal codice di un dipendente Microsoft.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linus Torvalds intendeva pubblicare il rilascio del kernel Linux 6.13 questa domenica, ma \u00e8 probabile che il testing della branch 6.13 venga prolungato di una settimana a causa di problemi di stabilit\u00e0 nei cambiamenti preparati da un dipendente Microsoft e accettati nella branch 6.13 a novembre. Inoltre, si evidenzia che la patch che ha causato il crash \u00e8 stata presentata in modo non standard \u2014 ma \u00e8 stata accettata, sebbene non abbia ricevuto alcuna conferma (ACK) dai maintainer dell'architettura x86, il che rappresenta una violazione delle pratiche comuni.    <\/p>\n<p>La patch aggiungeva la possibilit\u00e0 di utilizzare pagine di memoria grandi in modalit\u00e0 ROX (Read Only Execute) durante l'allocazione della memoria destinata a contenere codice eseguibile. ROX consente di utilizzare la memoria con codice eseguibile in modalit\u00e0 di sola lettura, complicando cos\u00ec l'exploitation di alcune vulnerabilit\u00e0. Nel kernel 6.13 \u00e8 stato abilitato per impostazione predefinita l'uso della cache di grandi pagine di memoria eseguibile, riflesso come ROX, per il codice eseguibile dei moduli sui sistemi x86_64. La modifica risolveva il problema di mapping in modalit\u00e0 ROX delle pagine per codice eseguibile ancora non completamente formato e permetteva di evitare il ripristino temporaneo delle pagine ROX in modalit\u00e0 scrittura fino al completamento della preparazione dei moduli del kernel per l'operativit\u00e0.      <\/p>\n<p>Nella fase finale di testing del kernel 6.13, un ingegnere di Intel ha identificato un crash che impedisce al kernel di uscire correttamente dalla modalit\u00e0 di sospensione su alcuni laptop con processori Intel (ad esempio, con CPU basate sull'architettura Alder Lake). Il crash si verificava durante la compilazione del kernel con il compilatore Clang abilitato nella modalit\u00e0 di protezione CFI (Control Flow Integrity), che blocca le violazioni del normale ordine di esecuzione a causa dell'uso di exploit che alterano i puntatori alle funzioni memorizzati in memoria. Come soluzione temporanea, i maintainers di Intel e AMD, responsabili dell'architettura x86, hanno proposto di disabilitare l'uso di EXECMEM_ROX nel kernel 6.13, fino a quando non sar\u00e0 preparata e testata una patch completa per risolvere il problema (il primo tentativo di correzione non ha risolto il problema).<br \/>\n<br \/>Fonte: <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 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041b\u0438\u043d\u0443\u0441 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modifiche.","canonical_url":"https:\/\/prohoster.info\/it\/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":"it_IT","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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