{"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\/hu\/blog\/news\/v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka","title":{"rendered":"A Fedora 45-ben tervezik a shadow stack alap\u00fa v\u00e9delmet","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Fedora Linux 45 kiad\u00e1s\u00e1ban, amely 2026 \u0151sz\u00e9re van tervezve, az x86_64 rendszereken alap\u00e9rtelmez\u00e9s szerint tervezz\u00fck a shadow stack haszn\u00e1lat\u00e1nak bekapcsol\u00e1s\u00e1t az exploitok blokkol\u00e1s\u00e1ra, amelyek fel\u00fcl\u00edrj\u00e1k a f\u00fcggv\u00e9nyek visszat\u00e9r\u00e9si c\u00edm\u00e9t a verem t\u00falcsordul\u00e1sa eset\u00e9n. A v\u00e9delmet akt\u00edvv\u00e1 k\u00edv\u00e1nj\u00e1k tenni minden alkalmaz\u00e1s \u00e9s k\u00f6nyvt\u00e1r sz\u00e1m\u00e1ra, amelyeket gcc (C, C++), clang (C, C++) \u00e9s rustc (Rust) ford\u00edt\u00f3 seg\u00edts\u00e9g\u00e9vel \u00e1ll\u00edtottak \u00f6ssze. A tervet m\u00e9g nem hagyta j\u00f3v\u00e1 a Fedora Engineering Steering Committee (FESCo), amely a Fedora Linux technikai fejleszt\u00e9s\u00e9\u00e9rt felel\u0151s. A shadow stack-be val\u00f3 bekapcsol\u00e1s kezdem\u00e9nyez\u0151je Arjun Shankar a Red Hat c\u00e9gt\u0151l, aki a Fedora \u00e9s a RHEL glibc csomagjait kezeli.<\/p>\n

A v\u00e9delem a processzorok hardveres lehet\u0151s\u00e9geinek felhaszn\u00e1l\u00e1s\u00e1val val\u00f3sul meg, \u00e9s l\u00e9nyeg\u00e9ben azt jelenti, hogy a vez\u00e9rl\u00e9s \u00e1tad\u00e1sa ut\u00e1n a visszat\u00e9r\u00e9si c\u00edmeket a processzor nemcsak a szok\u00e1sos veremben, hanem egy k\u00fcl\u00f6n \u201e\u00e1rny\u00e9k\u201d veremben is t\u00e1rolja, amelyet k\u00f6zvetlen\u00fcl nem lehet m\u00f3dos\u00edtani. A funkci\u00f3b\u00f3l val\u00f3 kil\u00e9p\u00e9s el\u0151tt a visszat\u00e9r\u00e9si c\u00edm az \u00e1rny\u00e9k veremb\u0151l ker\u00fcl el\u0151h\u00edv\u00e1sra, \u00e9s \u00f6sszehasonl\u00edt\u00e1sra ker\u00fcl az alap veremben l\u00e9v\u0151 visszat\u00e9r\u00e9si c\u00edmmel. Az elt\u00e9r\u00e9s c\u00edmek eset\u00e9n kiv\u00e9tel gener\u00e1l\u00f3dik, amely blokkolja azokat a helyzeteket, amikor a kihaszn\u00e1l\u00e1s sikeresen fel\u00fcl\u00edrta a c\u00edmet az alap veremben. Az \u00e1rny\u00e9k verem mechanizmusa 11. gener\u00e1ci\u00f3s Intel processzorokkal (\"Tiger Lake\" \u00e9s \"Rocket Lake\") \u00e9s AMD Zen3 mikroarchitekt\u00far\u00e1j\u00e1val t\u00e1mogatott.
\n
Forr\u00e1s: 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\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\udd47 A Fedora 45-ben tervezik a shadow stack alap\u00fa v\u00e9delmet | ProHoster","description":"A Fedora Linux 45 kiad\u00e1s\u00e1ban, amely 2026 \u0151sz\u00e9re van tervezve, az x86_64 rendszereken alap\u00e9rtelmez\u00e9s szerint tervezz\u00fck a shadow stack haszn\u00e1lat\u00e1nak bekapcsol\u00e1s\u00e1t az exploitok blokkol\u00e1s\u00e1ra, amelyek fel\u00fcl\u00edrj\u00e1k a 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