{"id":182443,"date":"2026-07-02T22:53:28","date_gmt":"2026-07-02T20:53:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/problemy-s-ochistkoj-klyuchej-shifrovaniya-diska-iz-ozu-pri-perehode-linux-v-zhdushhij-rezhim"},"modified":"2026-07-02T22:53:28","modified_gmt":"2026-07-02T20:53:29","slug":"problemy-s-ochistkoj-klyuchej-shifrovaniya-diska-iz-ozu-pri-perehode-linux-v-zhdushhij-rezhim","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/problemy-s-ochistkoj-klyuchej-shifrovaniya-diska-iz-ozu-pri-perehode-linux-v-zhdushhij-rezhim","title":{"rendered":"Problemi nella pulizia delle chiavi di crittografia del disco dalla RAM durante la modalit\u00e0 di sospensione di Linux.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Durante il porting dello strumento cryptsetup-suspend per NixOS \u00e8 stato rilevato un errore nel sotto-sistema di crittografia del disco LUKS (Linux Unified Key Setup), a causa del quale, a partire dal kernel Linux 6.9 (commit problematico), rilasciato a maggio 2024, la pulizia delle chiavi di crittografia dalla memoria volatile ha smesso di funzionare quando il sistema entra in modalit\u00e0 sospensione. <\/p>\n

\u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 cryptsetup-suspend \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 Debian \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 LUKS-\u0440\u0430\u0437\u0434\u0435\u043b\u043e\u0432 \u043f\u0435\u0440\u0435\u0434 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043e\u043c \u0432 \u0440\u0435\u0436\u0438\u043c \u0441\u043d\u0430. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043a\u0440\u0430\u0436\u0438 \u043d\u043e\u0443\u0442\u0431\u0443\u043a\u0430, \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0451\u043d\u043d\u043e\u0433\u043e \u0432 \u0440\u0435\u0436\u0438\u043c \u0441\u043d\u0430, \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u0431\u0443\u0434\u0435\u0442 \u043b\u0438\u0448\u0451\u043d \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0434\u0430\u043d\u043d\u044b\u043c, \u0442\u0430\u043a \u043a\u0430\u043a \u043f\u0440\u0438 \u0432\u044b\u0445\u043e\u0434\u0435 \u0438\u0437 \u0441\u043d\u0430 \u043f\u043e\u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0432\u0432\u0435\u0441\u0442\u0438 \u043f\u0430\u0440\u043e\u043b\u044c \u0434\u043b\u044f \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u0434\u0430\u043d\u043d\u044b\u043c. \u0418\u0437-\u0437\u0430 \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 \u044f\u0434\u0440\u0435 Linux \u043f\u043e\u0441\u043b\u0435 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 LUKS-\u0440\u0430\u0437\u0434\u0435\u043b\u0430 \u043a\u043e\u043c\u0430\u043d\u0434\u043e\u0439 «cryptsetup luksSuspend» \u043a\u043b\u044e\u0447\u0438 \u043d\u0435 \u043e\u0447\u0438\u0449\u0430\u043b\u0438\u0441\u044c \u0438\u0437 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u043e\u0441\u0442\u0430\u0432\u0430\u043b\u0438\u0441\u044c \u0432\u0438\u0434\u043d\u044b \u0447\u0435\u0440\u0435\u0437 \/proc\/keys, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0438\u0437\u0432\u043b\u0435\u0447\u044c \u0438\u0445, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043c\u0435\u0442\u043e\u0434\u043e\u043c «\u0445\u043e\u043b\u043e\u0434\u043d\u043e\u0439 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438», \u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0434\u0430\u043d\u043d\u044b\u043c. <\/p>\n

L'assenza di una pulizia delle chiavi \u00e8 stata riscontrata durante il debug di uno stato di race, che ha causato problemi nel passaggio alla modalit\u00e0 di attesa. L'errore \u00e8 emerso dopo il refactoring nel kernel 6.9, che legava le chiavi al thread chiamante e avrebbe dovuto eliminarle al suo completamento, ma in realt\u00e0 rimanevano in memoria. \u00c8 stato proposto un patch a una riga da includere nel kernel di Linux, che risolve l'errore riscontrato. <\/p>\n

\u0414\u0430\u043d\u043d\u044b\u0439 \u043f\u0430\u0442\u0447 \u043d\u0435 \u043f\u0440\u0438\u043d\u044f\u0442 \u0432 \u044f\u0434\u0440\u043e, \u0442\u0430\u043a \u043a\u0430\u043a \u0432 \u043d\u0451\u043c \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043d\u0435\u0434\u043e\u0440\u0430\u0431\u043e\u0442\u043a\u0430 — \u043f\u0430\u0442\u0447 \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u0435\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439, \u043d\u043e \u043d\u0435 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0434\u043b\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 loop-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432. \u0412\u043c\u0435\u0441\u0442\u043e \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u044f\u0434\u0440\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f cryptsetup \u0431\u044b\u043b \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043e\u0431\u0445\u043e\u0434\u043d\u043e\u0439 \u043f\u0443\u0442\u044c \u043e\u0447\u0438\u0441\u0442\u043a\u0438 \u043a\u043b\u044e\u0447\u0435\u0439. \u0414\u0430\u043d\u043d\u043e\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0443\u0436\u0435 \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0438 \u0432\u043e\u0439\u0434\u0451\u0442 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 cryptsetup 2.8.7. <\/p>\n

In aggiunta, per NixOS \u00e8 stata creata una propria implementazione di script per bloccare i dischi crittografati prima di passare alla modalit\u00e0 di attesa, utilizzando un vecchio patch al kernel, non accettato nel 2015, che forzatamente pulisce le chiavi dalla memoria prima di andare in sleep.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0445\u043e\u0434\u0435 \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f NixOS \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f cryptsetup-suspend \u0431\u044b\u043b\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043e\u0448\u0438\u0431\u043a\u0430 \u0432 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0434\u0438\u0441\u043a\u043e\u0432\u043e\u0433\u043e \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f LUKS (Linux Unified Key Setup), \u0438\u0437-\u0437\u0430 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u044f\u0434\u0440\u0430 Linux 6.9 (\u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u044b\u0439 \u043a\u043e\u043c\u043c\u0438\u0442), \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0433\u043e \u0432 \u043c\u0430\u0435 2024 \u0433\u043e\u0434\u0430, \u043f\u0435\u0440\u0435\u0441\u0442\u0430\u043b\u0430 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u043e\u0447\u0438\u0441\u0442\u043a\u0430 \u043a\u043b\u044e\u0447\u0435\u0439 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u0437 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0432 \u0436\u0434\u0443\u0449\u0438\u0439 \u0440\u0435\u0436\u0438\u043c. \u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 cryptsetup-suspend \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 Debian \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182443","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"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\n","aioseo_head_json":{"title":"\ud83e\udd47Problemi con la pulizia delle chiavi di crittografia del disco dalla RAM quando Linux passa alla modalit\u00e0 di sospensione | ProHoster","description":"Durante il porting dell'utility cryptsetup-suspend per NixOS, \u00e8 stato riscontrato un errore nel sottosistema di crittografia del disco LUKS (Linux Unified Key Setup), a causa del quale, a partire dal kernel Linux 6.9 (commit problematico), rilasciato nel maggio 2024, ha smesso di funzionare la pulizia delle chiavi di crittografia dalla memoria volatile durante il passaggio del sistema alla modalit\u00e0 di sospensione. 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