{"id":181784,"date":"2026-05-28T14:48:41","date_gmt":"2026-05-28T12:48:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/greg-kroa-hartman-rasskazal-o-tom-kak-rust-mozhet-pomoch-v-borbe-s-oshibkami-v-yadre-linux"},"modified":"2026-05-28T14:48:41","modified_gmt":"2026-05-28T12:48:41","slug":"greg-kroa-hartman-rasskazal-o-tom-kak-rust-mozhet-pomoch-v-borbe-s-oshibkami-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/greg-kroa-hartman-rasskazal-o-tom-kak-rust-mozhet-pomoch-v-borbe-s-oshibkami-v-yadre-linux","title":{"rendered":"Greg Croa-Hartman hovoril o tom, ako m\u00f4\u017ee Rust pom\u00f4c\u0165 v boji proti chyb\u00e1m v jadre Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Greg Kroah-Hartman, ktor\u00fd zodpoved\u00e1 za podporu stabiln\u00fdch a \u201estaging\u201c vetiev jadra Linux a zast\u00e1va post hlavn\u00e9ho udr\u017eiavate\u013ea v 16 podsystemoch jadra, vyst\u00fapil s predn\u00e1\u0161kou na konferencii Rust Week 2026, kde hovoril o tom, ako jazyk Rust m\u00f4\u017ee pom\u00f4c\u0165 predch\u00e1dza\u0165 vzniku zranite\u013enost\u00ed v jadre, ktor\u00e9 vypl\u00fdvaj\u00fa z typick\u00fdch ch\u00fdb v\u00fdvoj\u00e1rov v jazyku C pri pr\u00e1ci s pam\u00e4\u0165ou, zamykan\u00edm, spracovan\u00edm ch\u00fdb a pr\u00e1cou s ned\u00f4veryhodn\u00fdmi \u00fadajmi. Hlavn\u00fdm pr\u00ednosom Rustu je schopnos\u0165 odha\u013eova\u0165 tak\u00e9to chyby v \u0161t\u00e1diu zostavovania, a nie pri rev\u00edzii k\u00f3du \u013eu\u010fmi. Rust sa v\u0161ak nepova\u017euje za panaceu, ktor\u00e1 by n\u00e1s zbavila v\u0161etk\u00fdch probl\u00e9mov, a nikto nem\u00e1 v \u00famysle prepisova\u0165 jadro na Rust: o\u010dak\u00e1va sa postupn\u00e9 zav\u00e1dzanie Rustu prostredn\u00edctvom jeho pou\u017eitia pre nov\u00e9 ovl\u00e1da\u010de a podsystemy.<\/p>\n

Ako pr\u00edklad ch\u00fdb v jadre, ktor\u00fdm by sa bolo dalo vyhn\u00fa\u0165 pou\u017eit\u00edm Rustu, bola spomenut\u00e1 chyba v subsyst\u00e9me Bluetooth, ktor\u00e1 bola prehliadnut\u00e1 15 rokov, a probl\u00e9m v hyperv\u00edzore Xen. V prvom pr\u00edpade v\u00fdvoj\u00e1r vykonal de-referencing ukazovate\u013ea bez kontroly, zatia\u013e \u010do v druhom pr\u00edpade zabudol odblokova\u0165 z\u00e1mok v k\u00f3de spracovania ch\u00fdb.
\nPod\u013ea Grega je v\u00e4\u010d\u0161ina ch\u00fdb v jadre sp\u00f4soben\u00e1 podobn\u00fdmi drobnos\u0165ami, ktor\u00e9 sa \u010dasom hromadia a vypl\u00e1vaj\u00fa na povrch ako zranite\u013enosti. V Ruste mnoh\u00e9 z t\u00fdchto probl\u00e9mov predch\u00e1dza kompil\u00e1tor, napr\u00edklad Rust-abstrakcie pre z\u00e1mky v jadre umo\u017e\u0148uj\u00fa pr\u00edstup k intern\u00fdm ukazovate\u013eom \u0161trukt\u00far len po zachyten\u00ed pr\u00edslu\u0161n\u00e9ho z\u00e1mku, ktor\u00fd sa uvo\u013e\u0148uje automaticky. Bez zachytenia z\u00e1mku nie je mo\u017en\u00e9 z\u00edska\u0165 pr\u00edstup k ukazovate\u013eom \u0161trukt\u00far v Rust. <\/p>\n

Greg si mysl\u00ed, \u017ee tak\u00e9to mo\u017enosti Rust by zabr\u00e1nili vzniku 60% ch\u00fdb identifikovan\u00fdch v jadre a overovania vykon\u00e1van\u00e9 kompil\u00e1torom by zbavili udr\u017eiavaj\u00facich od tr\u00e1venia \u010dasu diskusiou s autormi o spr\u00e1vnosti spracovania ch\u00fdb a d\u00f4vodoch blokovania v spr\u00e1vnom mieste. Okrem toho zavedenie podpory Rust u\u017e malo blahodarn\u00fd vplyv aj na C-k\u00f3d v jadre v\u010faka \u00faprave C-k\u00f3du a rozhran\u00ed, ako aj prevzatiu niektor\u00fdch v\u00fdvojov\u00fdch techn\u00edk (napr\u00edklad boli implementovan\u00e9 z\u00e1mky s obmedzen\u00fdm rozsahom).<\/p>\n

V\u010faka syst\u00e9mu typov, ktor\u00fd zabezpe\u010duje dodr\u017eiavanie stanoven\u00fdch pravidiel, a aplik\u00e1cii syst\u00e9mov kontinu\u00e1lnej integr\u00e1cie, ktor\u00e9 kontroluj\u00fa k\u00f3d v \u0161t\u00e1diu zostavenia, sa pri rev\u00edzii zmien v Rust m\u00f4\u017eu recenzenti s\u00fastredi\u0165 na overenie logiky fungovania, namiesto sledovania manipul\u00e1ci\u00ed so zdrojmi. Pou\u017eitie Rustu tie\u017e umo\u017e\u0148uje venova\u0165 v\u00e4\u010d\u0161iu pozornos\u0165 \u00fadajom prich\u00e1dzaj\u00facim z hardv\u00e9ru alebo extern\u00fdch syst\u00e9mov. To sa dosahuje v\u010faka jasn\u00e9mu rozl\u00ed\u0161eniu d\u00f4veryhodn\u00fdch a ned\u00f4veryhodn\u00fdch \u00fadajov na \u00farovni syst\u00e9mu typov: v\u00fdvoj\u00e1rovi sta\u010d\u00ed vykona\u0165 anal\u00fdzu pri prechode z ned\u00f4veryhodn\u00e9ho do d\u00f4veryhodn\u00e9ho stavu.<\/p>\n

V poslednom obdob\u00ed t\u00edm zodpovedn\u00fd za bezpe\u010dnos\u0165 v jadre zverej\u0148uje ka\u017ed\u00fd de\u0148 pribli\u017ene 13 spr\u00e1v o zranite\u013enostiach, \u010do sa na pozad\u00ed predch\u00e1dzaj\u00facej dynamiky odha\u013eovania zranite\u013enost\u00ed jav\u00ed ako nie\u010do bl\u00e1zniv\u00e9 (na pr\u00edklad v\u010dera bolo zverejnen\u00fdch 277 spr\u00e1v o zranite\u013enostiach v jadre). Pod\u013ea Grega je vyu\u017e\u00edvanie Rustu jedn\u00fdm z re\u00e1lnych sp\u00f4sobov, ako zn\u00ed\u017ei\u0165 po\u010det ch\u00fdb v jadre sp\u00f4soben\u00fdch tradi\u010dn\u00fdmi chybami pri spracovan\u00ed ch\u00fdb a spr\u00e1ve zdrojov. V jadre u\u017e podpora Rustu prekro\u010dila r\u00e1mec experimentu a koncom minul\u00e9ho roka bola uznan\u00e1 za \u0161tandardn\u00fa mo\u017enos\u0165 jadra. <\/p>\n

\r\n \"Prehrajte\r\n
<\/div>\r\n <\/div><\/center>
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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0413\u0440\u0435\u0433 \u041a\u0440\u043e\u0430-\u0425\u0430\u0440\u0442\u043c\u0430\u043d (Greg Kroah-Hartman), \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0438\u0439 \u0437\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0438 «staging» \u0432\u0435\u0442\u043e\u043a \u044f\u0434\u0440\u0430 Linux \u0438 \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439 \u043f\u043e\u0441\u0442 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430 \u0432 16 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u044f\u0434\u0440\u0430, \u0432\u044b\u0441\u0442\u0443\u043f\u0438\u043b \u0441 \u0434\u043e\u043a\u043b\u0430\u0434\u043e\u043c \u043d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 Rust Week 2026, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b, \u043a\u0430\u043a \u044f\u0437\u044b\u043a Rust \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u043c\u043e\u0447\u044c \u0432 \u043f\u0440\u0435\u0434\u043e\u0442\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u0438 \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u044f\u0434\u0440\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0438\u0445 \u0438\u0437-\u0437\u0430 \u0442\u0438\u043f\u0438\u0447\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e, 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