{"id":121343,"date":"2025-01-15T09:46:00","date_gmt":"2025-01-15T07:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft"},"modified":"2025-01-15T09:46:00","modified_gmt":"2025-01-15T07:46:00","slug":"v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","title":{"rendered":"A Linux 6.13-as magban, amely a k\u00f6zelg\u0151 kiad\u00e1sra k\u00e9sz\u00fcl, egy Microsoft alkalmazott k\u00f3dja okozta \u00f6sszeoml\u00e1st","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linus Torvalds azt tervezte, hogy ezen a vas\u00e1rnap k\u00f6zz\u00e9teszi a Linux 6.13 kernel kiad\u00e1s\u00e1t, de val\u00f3sz\u00edn\u0171leg a 6.13-as \u00e1g tesztel\u00e9se egy h\u00e9ttel meghosszabbodik a Microsoft munkat\u00e1rsa \u00e1ltal javasolt v\u00e1ltoztat\u00e1sok stabilit\u00e1si probl\u00e9m\u00e1i miatt, amelyeket novemberben fogadtak el a 6.13-as \u00e1gba. Tov\u00e1bb\u00e1 megjegyzik, hogy a hib\u00e1t okoz\u00f3 jav\u00edt\u00e1st szokatlan m\u00f3don ny\u00fajtott\u00e1k be \u2013 de elfogadt\u00e1k, hab\u00e1r egyetlen visszaigazol\u00e1st (ACK) sem kaptak az x86 architekt\u00fara karbantart\u00f3it\u00f3l, ami a megszokott gyakorlatok megs\u00e9rt\u00e9se. <\/p>\n

A patch nagy mem\u00f3riaoldalak ROX (Read Only Execute) m\u00f3dban t\u00f6rt\u00e9n\u0151 felhaszn\u00e1l\u00e1s\u00e1t tette lehet\u0151v\u00e9 a mem\u00f3riakioszt\u00e1skor, amely a v\u00e9grehajtand\u00f3 k\u00f3d t\u00e1rol\u00e1s\u00e1ra volt sz\u00e1nva. A ROX lehet\u0151v\u00e9 teszi a v\u00e9grehajt\u00f3 k\u00f3dot tartalmaz\u00f3 mem\u00f3ria haszn\u00e1lat\u00e1t csak olvashat\u00f3 m\u00f3dban, ami megnehez\u00edti egyes sebezhet\u0151s\u00e9gek kihaszn\u00e1l\u00e1s\u00e1t. A 6.13-as kernelben az x86_64 rendszerek moduljainak v\u00e9grehajt\u00f3 k\u00f3dj\u00e1nak cache-\u00e9t alap\u00e9rtelmez\u00e9s szerint bekapcsolt\u00e1k, amelyet ROX-k\u00e9nt t\u00fckr\u00f6ztek. A m\u00f3dos\u00edt\u00e1s megoldotta a ROX m\u00f3dban t\u00f6rt\u00e9n\u0151 oldalt\u00e9rk\u00e9pez\u00e9ssel kapcsolatos probl\u00e9m\u00e1t a m\u00e9g teljesen ki nem alakult v\u00e9grehajt\u00f3 k\u00f3d eset\u00e9ben, \u00e9s lehet\u0151v\u00e9 tette a kernel modulok munk\u00e1ba \u00e1ll\u00edt\u00e1s\u00e1ig sz\u00fcks\u00e9ges \u00e1tmeneti ROX-oldalak \u00edr\u00e1si m\u00f3dba t\u00f6rt\u00e9n\u0151 \u00e1t\u00edr\u00e1s\u00e1nak elker\u00fcl\u00e9s\u00e9t. <\/p>\n

A 6.13-as kernel v\u00e9gs\u0151 tesztel\u00e9si f\u00e1zis\u00e1ban egy Intel m\u00e9rn\u00f6k felfedezett egy hib\u00e1t, amely megakad\u00e1lyozta a kernel megfelel\u0151 \u00e9brenl\u00e9t\u00e9t n\u00e9h\u00e1ny Intel processzorral rendelkez\u0151 laptopon (p\u00e9ld\u00e1ul Alderlake mikroarchitekt\u00far\u00e1ra \u00e9p\u00fcl\u0151 CPU-k eset\u00e9n). A hiba a kernel Clang ford\u00edt\u00f3val val\u00f3 \u00f6ssze\u00e1ll\u00edt\u00e1sakor jelentkezett, mikor a CFI (Control Flow Integrity) v\u00e9delmi m\u00f3d enged\u00e9lyezve volt, amely blokkolja a norm\u00e1l v\u00e9grehajt\u00e1si sorrend megs\u00e9rt\u00e9s\u00e9t, amelyet a mem\u00f3ria t\u00e1rolt f\u00fcggv\u00e9nymutat\u00f3k megv\u00e1ltoztat\u00e1s\u00e1val elk\u00f6vetett exploitok okoznak. Ideiglenes megold\u00e1sk\u00e9nt az Intel \u00e9s AMD v\u00e1llalatok x86 architekt\u00far\u00e1\u00e9rt felel\u0151s maintainerjei azt javasolt\u00e1k, hogy kapcsolj\u00e1k ki az EXECMEM_ROX haszn\u00e1lat\u00e1t a 6.13-as kernelben, am\u00edg el nem k\u00e9sz\u00fcl \u00e9s nem tesztelik az egy teljes jav\u00edt\u00f3 patchot, amely megoldja a probl\u00e9m\u00e1t (az els\u0151 jav\u00edt\u00e1si lehet\u0151s\u00e9g nem oldotta meg a gondot).
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u043d\u0430\u043c\u0435\u0440\u0435\u0432\u0430\u043b\u0441\u044f \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u0442\u044c \u0440\u0435\u043b\u0438\u0437 \u044f\u0434\u0440\u0430 Linux 6.13 \u0432 \u044d\u0442\u043e \u0432\u043e\u0441\u043a\u0440\u0435\u0441\u0435\u043d\u044c\u0435, \u043d\u043e \u0441\u043a\u043e\u0440\u0435\u0435 \u0432\u0441\u0435\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 6.13 \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u043e\u0434\u043b\u0435\u043d\u043e \u043d\u0430 \u043d\u0435\u0434\u0435\u043b\u044e \u0438\u0437-\u0437\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e \u0432 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f\u0445, 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121343","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\udd47A k\u00f6zelg\u0151 Linux 6.13 kernel kiad\u00e1s\u00e1ban egy hiba lett felfedezve, amelyet egy Microsoft alkalmazott k\u00f3dja okozott | ProHoster","description":"Linus Torvalds azt tervezte, hogy ezen a vas\u00e1rnapon kiadja a Linux 6.13 kernel verzi\u00f3j\u00e1t, de val\u00f3sz\u00edn\u0171, hogy a 6.13-as \u00e1gazat tesztel\u00e9s\u00e9t egy h\u00e9ttel meghosszab\u00edtj\u00e1k a v\u00e1ltoztat\u00e1sok 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