Ekusetshenzisweni kwekholi yesistimu ye- futex (indawo esheshayo ye-userspace mutex), ukusetshenziswa kwememori yesitaki ngemva kwamahhala kutholwe futhi kwaqedwa. Lokhu, futhi, kuvumele umhlaseli ukuthi asebenzise ikhodi yakhe kumongo we-kernel, nayo yonke imiphumela elandelayo ukusuka endaweni yokubuka yezokuphepha. Ukuba sengozini bekukhodi yesibambi sephutha.
Ukulungiswa Lokhu kuba sengozini kuvele kumugqa omkhulu we-Linux ngoJanuwari 28 futhi ngosuku lwangaphambi kwayizolo kungene kuma-kernel 5.10.12, 5.4.94, 4.19.172, 4.14.218.
Phakathi nengxoxo yalokhu kulungiswa, kuphakanyiswe ukuthi lobu bungozi bukhona kuzo zonke izindikimba kusukela ngo-2008:
https://www.openwall.com/lists/oss-security/2021/01/29/3
FWIW, lesi sibophezelo sine:
Ukulungiswa: 1b7558e457ed ("i-futexes: lungisa ukuphatha iphutha ku-futex_lock_pi")
futhi lokho okunye ukuzibophezela kuvela ku-2008. Ngakho-ke cishe konke okwamanje
I-Linux distros nokuthunyelwa kuyathinteka, ngaphandle uma kukhona okuthile
okunye kunciphise inkinga kwezinye izinguqulo ze-kernel.
Source: linux.org.ru