{"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\/da\/blog\/news\/v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka","title":{"rendered":"I Fedora 45 planl\u00e6gges implementering af beskyttelse baseret p\u00e5 skygge-stakken","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I Fedora Linux 45, der er planlagt til efter\u00e5ret 2026, vil der p\u00e5 x86_64-systemer blive aktivt inkluderet brugen af shadow stack som standard for at blokere for exploits, der overskriver funktionsreturadresser ved buffer overflow i stakken. Beskyttelsen forventes at blive aktiveret for alle applikationer og biblioteker, der er compilert med gcc (C, C++), clang (C, C++) og rustc (Rust). Planen er endnu ikke godkendt af FESCo (Fedora Engineering Steering Committee), som er ansvarlig for den tekniske del af Fedora Linux. Initiativtageren til inklusionen af shadow stack i Fedora er Arjun Shankar fra Red Hat, der h\u00e5ndterer pakker med glibc i Fedora og RHEL.<\/p>\n

Beskyttelsen implementeres ved hj\u00e6lp af processorens hardwarekapaciteter og g\u00e5r ud p\u00e5, at efter overladelse af kontrolfunktioner gemmer processoren returadresser ikke kun i den normale stak, men ogs\u00e5 i en separat \"skygge\"-stak, som ikke kan \u00e6ndres direkte. F\u00f8r udf\u00f8relsen forlader funktionen, hives returadressen fra skyggestakken og sammenlignes med returadressen fra den prim\u00e6re stak. En mismatch af adresser f\u00f8rer til generering af en undtagelse, der forhindrer situationer, hvor en udnyttelse er lykkedes med at overskrive adressen i den prim\u00e6re stak. Skyggestakmekanismen underst\u00f8ttes fra 11. generation af Intel-processorer (\"Tiger Lake\" og \"Rocket Lake\") og Zen3 mikroarkitekturen i AMD-processorer.
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Kilde: 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 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[…]<\/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\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\udd47I Fedora 45 planl\u00e6gger man at inkludere beskyttelse baseret p\u00e5 shadow stack | ProHoster","description":"I Fedora Linux 45, der er planlagt til efter\u00e5ret 2026, vil der p\u00e5 x86_64-systemer blive aktivt inkluderet brugen af shadow stack som standard for at blokere for exploits, der overskriver 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