Ts'ebetsong ea mohala oa tsamaiso ea futex (fast userspace mutex), tšebeliso ea memori ea stack ka mor'a hore mahala e fumanoe le ho felisoa. Sena, le sona, se ile sa lumella mohlaseli hore a phethe khoutu ea hae ho latela kernel, ka liphello tsohle tse latelang ho tloha sebakeng sa tšireletso. Bothata bo ne bo le khoutu ea sebatli.
Khalemelo Kotsi ena e hlahile ho Linux mainline ka la 28 Pherekhong mme letsatsi pele ho maobane e kene ka har'a lithollo 5.10.12, 5.4.94, 4.19.172, 4.14.218.
Nakong ea lipuisano tsa tokiso ena, ho khothalelitsoe hore ts'oaetso ena e teng lithabeng tsohle ho tloha ka 2008:
https://www.openwall.com/lists/oss-security/2021/01/29/3
FWIW, boitlamo bona bo na le: Litokiso: 1b7558e457ed ("futexes: fix fault handling in futex_lock_pi") le boitlamo boo bo bong bo tsoa 2008. Kahoo mohlomong li-deployments tsa Linux tse hlokometsoeng hajoale li amehile, ntle le haeba ho na le ntho e 'ngoe e ileng ea fokotsa bothata liphetolelong tse ling tsa kernel. .
Source: linux.org.ru