孝褝芯 写械 袪邪邪写褌 (Theo de Raadt) 写芯斜邪胁懈谢 胁 泻芯写芯胁褍褞 斜邪蟹褍 OpenBSD 褋械褉懈褞 锌邪褌褔械泄 写谢褟 写芯锌芯谢薪懈褌械谢褜薪芯泄 蟹邪褖懈褌褘 锌邪屑褟褌懈 锌褉芯褑械褋褋芯胁 胁 锌褉芯褋褌褉邪薪褋褌胁械 锌芯谢褜蟹芯胁邪褌械谢褟. 袪邪蟹褉邪斜芯褌褔懈泻邪屑 锌褉械写谢芯卸械薪 薪芯胁褘泄 褋懈褋褌械屑薪褘泄 胁褘蟹芯胁 懈 褋胁褟蟹邪薪薪邪褟 褋 薪懈屑 芯写薪芯懈屑褢薪薪邪褟 斜懈斜谢懈芯褌械褔薪邪褟 褎褍薪泻褑懈褟 mimmutable, 锌芯蟹胁芯谢褟褞褖邪褟 蟹邪褎懈泻褋懈褉芯胁邪褌褜 锌褉邪胁邪 写芯褋褌褍锌邪 锌褉懈 芯褌褉邪卸械薪懈懈 胁 锌邪屑褟褌褜 (memory mappings). 袩芯褋谢械 褎懈泻褋邪褑懈懈, 胁褘褋褌邪胁谢械薪薪褘械 写谢褟 芯斜谢邪褋褌懈 锌邪屑褟褌懈 锌褉邪胁邪, 薪邪锌褉懈屑械褉, 蟹邪锌褉械褌 薪邪 蟹邪锌懈褋褜 懈 懈褋锌芯谢薪械薪懈械, 薪械胁芯蟹屑芯卸薪芯 胁 写邪谢褜薪械泄褕械屑 懈蟹屑械薪懈褌褜 褔械褉械蟹 锌芯褋谢械写褍褞褖懈械 胁褘蟹芯胁褘 褎褍薪泻褑懈泄 mmap(), mprotect() 懈 munmap(), 泻芯褌芯褉褘械 锌褉懈 锌芯锌褘褌泻械 懈蟹屑械薪械薪懈褟 斜褍写褍褌 胁褘写邪胁邪褌褜 芯褕懈斜泻褍 EPERM.
袛谢褟 褍锌褉邪胁谢械薪懈褟 胁芯蟹屑芯卸薪芯褋褌褜褞 屑械薪褟褌褜 锌褉邪胁邪 芯褌褉邪卸褢薪薪芯泄 锌邪屑褟褌懈 写谢褟 芯斜褗械泻褌薪褘褏 褎邪泄谢芯胁 锌褉械写谢芯卸械薪邪 薪芯胁邪褟 褋械泻褑懈褟 Mutable BSS (.openbsd.mutable, Mutable Block Starting Symbol), 邪 褌邪泻卸械 写芯斜邪胁谢械薪褘 薪芯胁褘械 褎谢邪谐懈 PF_MUTABLE 懈 UVM_ET_IMMUTABLE. 袙 泻芯屑锌芯薪芯胁褖懈泻 写芯斜邪胁谢械薪邪 锌芯写写械褉卸泻邪 芯锌褉械写械谢械薪懈褟 褋械泻褑懈泄 芦openbsd.mutable禄 懈 褉邪蟹屑械褖械薪懈褟 懈褏 胁 芯褌写械谢褜薪褍褞 芯斜谢邪褋褌褜 胁 BSS, 胁褘褉芯胁薪械薪薪褍褞 锌芯 谐褉邪薪懈褑械 褋褌褉邪薪懈褑褘 锌邪屑褟褌懈. 效械褉械蟹 胁褘蟹芯胁 褎褍薪泻褑懈懈 mimmutable 锌褉械写芯褋褌邪胁谢褟械褌褋褟 胁芯蟹屑芯卸薪芯褋褌褜 锌芯屑械褌泻懈 胁褋械褏 芯褌褉邪卸褢薪薪褘褏 芯斜谢邪褋褌械泄 泻邪泻 薪械懈蟹屑械薪褟械屑褘褏 (immutable), 蟹邪 懈褋泻谢褞褔械薪懈械屑 褋械泻褑懈泄, 芯褌屑械褔械薪薪褘褏 泻邪泻 芦openbsd.mutable禄. 袧芯胁邪褟 胁芯蟹屑芯卸薪芯褋褌褜 斜褍写械褌 写芯胁械写械薪邪 写芯 锌芯谢褜蟹芯胁邪褌械谢械泄 胁 胁褘锌褍褋泻械 OpenBSD 7.3.
诪拽讜专: opennet.ru