A cikin aiwatar da tsarin kiran tsarin futex (mai sauri mai amfani da sararin samaniya), tara amfani da ƙwaƙwalwar ajiya bayan an gano kuma an kawar da shi kyauta. Wannan kuma, ya ba wa maharin damar aiwatar da lambarsa a cikin mahallin kwaya, tare da duk sakamakon da ya biyo baya ta fuskar tsaro. Rashin lahani yana cikin lambar mai sarrafa kuskure.
Gyara Wannan raunin ya bayyana a cikin babban layin Linux a ranar 28 ga Janairu kuma ranar da ta gabata ta shiga cikin kernels 5.10.12, 5.4.94, 4.19.172, 4.14.218.
A yayin tattaunawar wannan gyara, an ba da shawarar cewa wannan raunin yana wanzuwa a cikin duk kernels tun 2008:
https://www.openwall.com/lists/oss-security/2021/01/29/3
FWIW, wannan alƙawarin yana da: Gyarawa: 1b7558e457ed ("futexes: fix fault handling in futex_lock_pi") da sauran alƙawarin daga 2008. Don haka mai yiwuwa duk abubuwan da ke cikin Linux distros da deployments suna shafar, sai dai idan wani abu ya rage matsalar a wasu nau'ikan kernel. .
source: linux.org.ru