{"id":94301,"date":"2020-09-15T13:42:05","date_gmt":"2020-09-15T11:42:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-linux-iz-tekstovoj-konsoli-udalili-podderzhku-prokrutki-teksta"},"modified":"2020-09-15T13:42:05","modified_gmt":"2020-09-15T11:42:05","slug":"v-yadre-linux-iz-tekstovoj-konsoli-udalili-podderzhku-prokrutki-teksta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-yadre-linux-iz-tekstovoj-konsoli-udalili-podderzhku-prokrutki-teksta","title":{"rendered":"Nel kernel Linux \u00e8 stata rimossa dal terminale testuale la supporto alla scorrimento del testo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Della console testuale fornita con il kernel Linux \u00e8 stato rimosso il codice<\/a><\/noindex>, che consente lo scorrimento del testo (CONFIG_VGACON_SOFT_SCROLLBACK). Il codice \u00e8 stato rimosso a causa di errori, i quali non sono stati corretti per mancanza di un maintainer che supervisionasse lo sviluppo di vgacon.<\/p>\n

Durante l'estate \u00e8 stata identificata in vgacon risolto<\/a><\/noindex> una vulnerabilit\u00e0 (CVE-2020-14331), che potrebbe causare un overflow del buffer a causa dell'assenza di controlli adeguati sulla disponibilit\u00e0 di memoria nel buffer di scorrimento. Questa vulnerabilit\u00e0 ha attirato l'attenzione degli sviluppatori, che hanno organizzato test di fuzzing del codice vgacon in syzbot<\/a><\/noindex>.<\/p>\n

Ulteriori controlli hanno rivelato problemi simili nel codice vgacon, cos\u00ec come problemi nell'implementazione del scorrimento nel driver fbcon. Purtroppo, il codice problematico \u00e8 da tempo privo di supporto, presumibilmente perch\u00e9 gli sviluppatori si sono concentrati sull'uso delle console grafiche e le console testuali sono diventate obsolete (le persone continuano a utilizzare le console vgacon e fbcon, ma da decenni non sono pi\u00f9 l'interfaccia principale del kernel e funzionalit\u00e0 avanzate come lo scorrimento integrato nel driver (Shift+PageUp\/PageDown) sono probabilmente poco richieste). <\/p>\n

Pertanto, Linus Torvalds ha deciso di non cercare di supportare codice non richiesto e di rimuoverlo semplicemente. Se ci sono utenti che trovano necessaria questa funzionalit\u00e0, il codice per supportare lo scorrimento nella console sar\u00e0 reintegrato nel kernel non appena si trover\u00e0 un maintainer disposto a occuparsene.<\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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