{"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\/fr\/blog\/news\/v-yadre-linux-iz-tekstovoj-konsoli-udalili-podderzhku-prokrutki-teksta","title":{"rendered":"Le support du d\u00e9filement de texte a \u00e9t\u00e9 supprim\u00e9 du noyau Linux pour la console texte","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans l'impl\u00e9mentation de la console texte livr\u00e9e avec le noyau Linux le code a \u00e9t\u00e9 supprim\u00e9<\/a><\/noindex>, offrant la possibilit\u00e9 de faire d\u00e9filer le texte vers l'arri\u00e8re (CONFIG_VGACON_SOFT_SCROLLBACK). Le code a \u00e9t\u00e9 retir\u00e9 en raison de la pr\u00e9sence d'erreurs, pour lesquelles il n'y avait personne pour corriger en raison de l'absence d'un mainteneur supervisant le d\u00e9veloppement de vgacon.<\/p>\n

Cet \u00e9t\u00e9, une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9tect\u00e9e dans vgacon a \u00e9t\u00e9 corrig\u00e9e<\/a><\/noindex> CVE-2020-14331), qui peut provoquer un d\u00e9passement de tampon en raison de l'absence de v\u00e9rifications ad\u00e9quates concernant la m\u00e9moire disponible dans le tampon de d\u00e9filement. La vuln\u00e9rabilit\u00e9 a attir\u00e9 l'attention des d\u00e9veloppeurs, qui ont organis\u00e9 des tests de fuzzing du code de vgacon dans et de l'analyseur<\/a><\/noindex>.<\/p>\n

Des v\u00e9rifications suppl\u00e9mentaires ont r\u00e9v\u00e9l\u00e9 plusieurs probl\u00e8mes similaires dans le code de vgacon, ainsi que des probl\u00e8mes dans l'impl\u00e9mentation logicielle du d\u00e9filement dans le pilote fbcon. Malheureusement, le code probl\u00e9matique est rest\u00e9 sans maintenance depuis longtemps, probablement parce que les d\u00e9veloppeurs ont commenc\u00e9 \u00e0 privil\u00e9gier les consoles graphiques et que les consoles texte sont devenues obsol\u00e8tes (les gens continuent d'utiliser les consoles vgacon et fbcon, mais elles ne sont plus l'interface principale du noyau depuis des d\u00e9cennies, et des fonctionnalit\u00e9s avanc\u00e9es comme le d\u00e9filement int\u00e9gr\u00e9 dans le pilote (Shift+PageUp\/PageDown) sont suppos\u00e9es \u00eatre peu sollicit\u00e9es). <\/p>\n

En cons\u00e9quence, Linus Torvalds a d\u00e9cid\u00e9 de ne pas essayer de maintenir un code non sollicit\u00e9 et de le supprimer simplement. Si des utilisateurs se trouvent n\u00e9cessaires cette fonctionnalit\u00e9, le code de support du d\u00e9filement dans la console sera r\u00e9int\u00e9gr\u00e9 au noyau d\u00e8s qu'un mainteneur sera trouv\u00e9 pour le prendre en charge.<\/p>\n

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

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

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