{"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\/ro\/blog\/news\/v-yadre-linux-iz-tekstovoj-konsoli-udalili-podderzhku-prokrutki-teksta","title":{"rendered":"\u00cen nucleul Linux, suportul pentru defilarea textului din consola text a fost eliminat","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Din implementarea consolei textuale livrat\u0103 \u00een kernelul Linux a fost eliminat codul<\/a><\/noindex>, care asigur\u0103 posibilitatea de a derula textul \u00eenapoi (CONFIG_VGACON_SOFT_SCROLLBACK). Codul a fost eliminat din cauza erorilor, care nu au putut fi corectate deoarece nu exista un mentenant care s\u0103 se ocupe de dezvoltarea vgacon.<\/p>\n

\u00cen vara, \u00een vgacon a fost identificat\u0103 remediat\u0103<\/a><\/noindex> o vulnerabilitate (CVE-2020-14331), care ar putea conduce la o suprascriere a buffer-ului din cauza lipsei unor verific\u0103ri corespunz\u0103toare pentru disponibilitatea memoriei \u00een bufferul de derulare. Vulnerabilitatea a atras aten\u021bia dezvoltatorilor, care au organizat teste de fuzzing asupra codului vgacon \u00een syzbot<\/a><\/noindex>.<\/p>\n

Verific\u0103rile suplimentare au identificat \u00eenc\u0103 c\u00e2teva probleme similare \u00een codul vgacon, precum \u0219i probleme \u00een implementarea derul\u0103rii \u00een driverul fbcon. Din p\u0103cate, codul problematic nu a mai fost \u00eentre\u021binut de mult\u0103 vreme, din cauza presupusei tranzi\u021bii a dezvoltatorilor c\u0103tre console grafice, iar consolele textuale au ie\u0219it din uz (oamenii continu\u0103 s\u0103 foloseasc\u0103 consolele vgacon \u0219i fbcon, dar acestea nu au mai fost interfata principal\u0103 a kernelului de decenii \u0219i astfel de func\u021bii extinse, cum ar fi derularea integrat\u0103 \u00een driver (Shift+PageUp\/PageDown), sunt probabil rar solicitate). <\/p>\n

Din acest motiv, Linus Torvalds a decis s\u0103 nu \u00eencerce s\u0103 \u00eentre\u021bin\u0103 codul nefolosit, ci pur \u0219i simplu s\u0103-l elimine. Dac\u0103 vor exista utilizatori care consider\u0103 c\u0103 aceast\u0103 func\u021bionalitate le este necesar\u0103, codul pentru suportul derul\u0103rii \u00een consol\u0103 va fi reintegrat \u00een kernel imediat ce se va g\u0103si un mentenant dispus s\u0103 preia \u00eentre\u021binerea acestuia.<\/p>\n

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

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

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