Mukuita kwe futex (inokurumidza mushandisi mutex) system kufona, stack memory kushandiswa mushure memahara yaonekwa uye yakabviswa. Izvi, zvakare, zvakabvumira munhu anorwisa kuti aite kodhi yake mumamiriro eiyo kernel, nemhedzisiro yese inozotevera kubva pakuona kwekuchengetedza. Kusagadzikana kwanga kuri mukodhi yechibatiso.
Kugadziriswa Kusagadzikana uku kwakaonekwa muLinux mainline muna Ndira 28 uye zuva rakapfuura nezuro yakapinda mumakernels 5.10.12, 5.4.94, 4.19.172, 4.14.218.
Munguva yekukurukurirana kwekugadzirisa uku, zvakakurudzirwa kuti kusagadzikana uku kuripo mumakernels ese kubvira 2008:
https://www.openwall.com/lists/oss-security/2021/01/29/3
FWIW, chibvumirano ichi chine: Fixes: 1b7558e457ed ("futexes: gadzirisa kukanganisa kubata mu futex_lock_pi") uye kuti imwe tsidzo inobva muna 2008. Saka pamwe zvese zvakachengetwa zveLinux distros uye deployments zvinokanganiswa, kunze kwekunge chimwe chinhu chakadzora nyaya mune dzimwe kernel shanduro. .
Source: linux.org.ru