{"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\/nl\/blog\/news\/v-fedora-45-namereny-vklyuchit-zashhitu-na-osnove-tenevogo-steka","title":{"rendered":"In Fedora 45 is intended to include protection based on shadow stack","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In the upcoming release of Fedora Linux 45, scheduled for autumn 2026, it is planned to enable the use of shadow stack by default on x86_64 systems to block exploits that overwrite function return addresses in case of a stack buffer overflow. The protection is intended to be activated for all applications and libraries compiled using gcc (C, C++), clang (C, C++) and rustc (Rust). This plan has not yet been approved by the FESCo (Fedora Engineering Steering Committee), which is responsible for the technical development of Fedora Linux. The initiative to include shadow stack in Fedora comes from Arjun Shankar of Red Hat, who maintains the glibc packages in Fedora and RHEL.<\/p>\n

De bescherming wordt gerealiseerd met behulp van de hardwaremogelijkheden van de processors en houdt in dat, na het overdragen van de controle aan een functie, de retouradressen door de processor niet alleen in de normale stack, maar ook in een aparte \"shadow\" stack worden opgeslagen, die niet rechtstreeks kan worden gewijzigd. Voordat de functie wordt verlaten, wordt het retouradres uit de shadow stack opgehaald en vergeleken met het retouradres uit de hoofdstack. Een discrepantie tussen de adressen leidt tot het genereren van een uitzondering, die situaties blokkeert waarin een exploit erin is geslaagd het adres in de hoofdstack te overschrijven. Het shadow stack-mechanisme wordt ondersteund vanaf de 11e generatie Intel-processors (\"Tiger Lake\" en \"Rocket Lake\") en de Zen3-microarchitectuur in AMD-processors.
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Bron: 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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