{"id":182435,"date":"2026-07-02T10:53:32","date_gmt":"2026-07-02T08:53:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka"},"modified":"2026-07-02T10:53:32","modified_gmt":"2026-07-02T08:53:32","slug":"v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka","title":{"rendered":"Fedora 45 envisage d'int\u00e9grer une protection bas\u00e9e sur une pile d'ombre.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans la version de Fedora Linux 45, pr\u00e9vue pour l'automne 2026, l'utilisation de la stack d'ombre (shadow stack) sera par d\u00e9faut activ\u00e9e sur les syst\u00e8mes x86_64 pour bloquer l'ex\u00e9cution des exploits qui r\u00e9\u00e9crivent l'adresse de retour des fonctions en cas de d\u00e9passement de tampon dans la pile. La protection sera activ\u00e9e pour toutes les applications et biblioth\u00e8ques compil\u00e9es avec les compilateurs gcc (C, C++), clang (C, C++) et rustc (Rust). Ce plan n'a pas encore \u00e9t\u00e9 approuv\u00e9 par le comit\u00e9 FESCo (Fedora Engineering Steering Committee), responsable de la partie technique du d\u00e9veloppement de Fedora Linux. L'initiative d'inclure la stack d'ombre dans Fedora vient d'Arjun Shankar de Red Hat, qui maintient les paquets avec glibc dans Fedora et RHEL.<\/p>\n

La protection est assur\u00e9e par les capacit\u00e9s mat\u00e9rielles des processeurs, consistant \u00e0 ce qu'apr\u00e8s avoir transf\u00e9r\u00e9 le contr\u00f4le, les adresses de retour soient sauvegard\u00e9es par le processeur non seulement dans la pile ordinaire, mais aussi dans une pile \u00ab fant\u00f4me \u00bb s\u00e9par\u00e9e, qui ne peut pas \u00eatre modifi\u00e9e directement. Avant de quitter la fonction, l'adresse de retour est extraite de la pile fant\u00f4me et compar\u00e9e avec l'adresse de retour de la pile principale. Une non-concordance des adresses entra\u00eene la g\u00e9n\u00e9ration d'une exception, bloquant ainsi les situations o\u00f9 un exploit aurait r\u00e9ussi \u00e0 \u00e9craser l'adresse dans la pile principale. Le m\u00e9canisme de la pile fant\u00f4me est support\u00e9 depuis la 11\u00e8me g\u00e9n\u00e9ration de processeurs Intel (\u00ab Tiger Lake \u00bb et \u00ab Rocket Lake \u00bb) et l'architecture Zen3 des processeurs AMD.
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Fedora Linux 45, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u043e\u043c \u043d\u0430 \u043e\u0441\u0435\u043d\u044c 2026 \u0433\u043e\u0434\u0430, \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 x86_64 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u044e\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u0435\u043d\u0435\u0432\u043e\u0433\u043e \u0441\u0442\u0435\u043a\u0430 (shadow stack) \u0434\u043b\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442\u043e\u0432, \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u0430\u0434\u0440\u0435\u0441 \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0441\u0442\u0435\u043a\u0435. \u0417\u0430\u0449\u0438\u0442\u0443 \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u044b \u0430\u043a\u0442\u0438\u0432\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a, \u0441\u043e\u0431\u0440\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440\u043e\u0432 gcc (C, C++), clang (C, C++) \u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182435","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\udd47Dans Fedora 45, une protection bas\u00e9e sur la stack d'ombre sera int\u00e9gr\u00e9e | ProHoster","description":"Dans la version de Fedora Linux 45, pr\u00e9vue pour l'automne 2026, l'utilisation de la stack d'ombre (shadow stack) sera par d\u00e9faut activ\u00e9e sur les syst\u00e8mes x86_64 pour bloquer l'ex\u00e9cution des exploits qui r\u00e9\u00e9crivent 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Fedora Linux 45, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u043e\u043c \u043d\u0430 \u043e\u0441\u0435\u043d\u044c 2026 \u0433\u043e\u0434\u0430, \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 x86_64 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u044e\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u0435\u043d\u0435\u0432\u043e\u0433\u043e \u0441\u0442\u0435\u043a\u0430 (shadow stack) \u0434\u043b\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442\u043e\u0432, \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u044e\u0449\u0438\u0445 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