{"id":170538,"date":"2026-05-09T00:24:31","date_gmt":"2026-05-08T22:24:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predlozhen-killswitch-dlya-ekstrennogo-otklyucheniya-uyazvimoj-funkczionalnosti-v-yadre-linux"},"modified":"2026-05-09T00:24:31","modified_gmt":"2026-05-08T22:24:31","slug":"predlozhen-killswitch-dlya-ekstrennogo-otklyucheniya-uyazvimoj-funkczionalnosti-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/predlozhen-killswitch-dlya-ekstrennogo-otklyucheniya-uyazvimoj-funkczionalnosti-v-yadre-linux","title":{"rendered":"Proponowane killswitch dla natychmiastowego wy\u0142\u0105czenia podatnej funkcjonalno\u015bci w j\u0105drze Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Sasha Levin z firmy NVIDIA, zajmuj\u0105cy si\u0119 wsparciem ga\u0142\u0119zi LTS j\u0105dra Linux i cz\u0142onek doradczego comit\u00e9 Linux Foundation, przygotowa\u0142 zestaw poprawek implementuj\u0105cych mechanizm killswitch dla j\u0105dra Linux. Proponowana funkcja pozwala na natychmiastowe wy\u0142\u0105czenie dost\u0119pu do okre\u015blonej funkcjonalno\u015bci dzia\u0142aj\u0105cego j\u0105dra. Zak\u0142ada si\u0119, \u017ce killswitch b\u0119dzie u\u017cyteczny do tymczasowego blokowania luk bezpiecze\u0144stwa do czasu zainstalowania aktualizacji j\u0105dra z poprawk\u0105. <\/p>\n

Zarz\u0105dzanie killswitch odbywa si\u0119 za pomoc\u0105 pliku \"\/sys\/kernel\/security\/killswitch\/control\", kt\u00f3ry umo\u017cliwia skonfigurowanie przechwytywania wywo\u0142a\u0144 funkcji j\u0105dra na podstawie ich nazw. Na przyk\u0142ad, aby zablokowa\u0107 podatno\u015b\u0107 Copy Fail, wystarczy wpisa\u0107 do pliku steruj\u0105cego polecenie \"engage af_alg_sendmsg -1\" w celu w\u0142\u0105czenia przechwytywania wywo\u0142ania funkcji af_alg_sendmsg i zamiast jej wykonania zwr\u00f3cenia kodu b\u0142\u0119du \"-1\". <\/p>\n

Jako nazwy mo\u017cna u\u017cywa\u0107 dowolnych znak\u00f3w obs\u0142ugiwanych przez podsystem kprobes. Wiele z niedawno odkrytych powa\u017cnych luk w j\u0105drze znajduje si\u0119 w podsystemach u\u017cywanych przez stosunkowo niewielk\u0105 liczb\u0119 u\u017cytkownik\u00f3w (na przyk\u0142ad AF_ALG, ksmbd, nf_tables, vsock, ax25). Dla wi\u0119kszo\u015bci u\u017cytkownik\u00f3w niedogodno\u015bci zwi\u0105zane z zaprzestaniem dzia\u0142ania poszczeg\u00f3lnych funkcji nie mog\u0105 si\u0119 r\u00f3wna\u0107 z ryzykiem korzystania z j\u0105dra z znanymi, niepoprawionymi lukami do momentu zainstalowania poprawki. Mechanizm killswitch jest szczeg\u00f3lnie istotny w kontek\u015bcie dzisiejszej luki Dirty Frag, exploit do kt\u00f3rej zosta\u0142 opublikowany wcze\u015bniej, ni\u017c problem zosta\u0142 rozwi\u0105zany w j\u0105drze.
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u0430\u0448\u0430 \u041b\u0435\u0432\u0438\u043d (Sasha Levin) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 NVIDIA, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c LTS-\u0432\u0435\u0442\u043e\u043a \u044f\u0434\u0440\u0430 Linux \u0438 \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0432 \u043a\u043e\u043d\u0441\u0443\u043b\u044c\u0442\u0430\u0442\u0438\u0432\u043d\u044b\u0439 \u0441\u043e\u0432\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation, \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 killswitch \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux. \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043c\u0433\u043d\u043e\u0432\u0435\u043d\u043d\u043e \u043e\u0442\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0435\u0433\u043e \u044f\u0434\u0440\u0430. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e killswitch \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u043b\u0435\u0437\u0435\u043d \u0434\u043b\u044f \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u043d\u0430 \u0432\u0440\u0435\u043c\u044f \u0434\u043e \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f […]<\/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-170538","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\udd47Proponowany killswitch do nag\u0142ego wy\u0142\u0105czenia podatnej funkcjonalno\u015bci w j\u0105drze Linux | ProHoster","description":"Sasha Levin z firmy NVIDIA, zajmuj\u0105cy si\u0119 wsparciem ga\u0142\u0119zi LTS j\u0105dra Linux i cz\u0142onek doradczego comit\u00e9 Linux Foundation, przygotowa\u0142 zestaw poprawek implementuj\u0105cych mechanizm.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/predlozhen-killswitch-dlya-ekstrennogo-otklyucheniya-uyazvimoj-funkczionalnosti-v-yadre-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pl_PL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d killswitch \u0434\u043b\u044f \u044d\u043a\u0441\u0442\u0440\u0435\u043d\u043d\u043e\u0433\u043e \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0432 \u044f\u0434\u0440\u0435 Linux | ProHoster","og:description":"\u0421\u0430\u0448\u0430 \u041b\u0435\u0432\u0438\u043d (Sasha Levin) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 NVIDIA, \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c LTS-\u0432\u0435\u0442\u043e\u043a \u044f\u0434\u0440\u0430 Linux \u0438 \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0432 \u043a\u043e\u043d\u0441\u0443\u043b\u044c\u0442\u0430\u0442\u0438\u0432\u043d\u044b\u0439 \u0441\u043e\u0432\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation, \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430.","og:url":"https:\/\/prohoster.info\/pl\/blog\/news\/predlozhen-killswitch-dlya-ekstrennogo-otklyucheniya-uyazvimoj-funkczionalnosti-v-yadre-linux","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-05-08T22:24:31+00:00","article:modified_time":"2026-05-08T22:24:31+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/170538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/comments?post=170538"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/170538\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/media?parent=170538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/categories?post=170538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/tags?post=170538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}