Ma Canonical amatulutsa zosintha za kernel kuti athetse zovuta zaposachedwa

Posachedwa, ndidazipeza maola angapo apitawa, zovuta zingapo zapezeka zomwe zimakhudza ma processor a Intel kuyambira 2011 mpaka lero. Zolephera izi zimadziwika kuti Microarchitectural Data Sampling (MDS) ndi Canonical yatulutsa kale mitundu yatsopano ya kernel Kwa Ubuntu ndi zina zonse zovomerezeka, zomwe timakumbukira ndi Kubuntu, Lubuntu, Xubuntu, Ubuntu Budgie, Ubuntu Mate, Ubuntu Studio ndi Ubuntu Kylin. Mabaibulo atsopanowa amabwera ndi nambala ya 5.0.0.15.16, bola tikakhala ku Disco Dingo.

Pamene timawerenga chidziwitso chodziwitsa, okwana zolakwika zinayi zachitetezo komwe Intel idatulutsira kale microcode yake ya firmware kuthana ndi vutoli, koma ma firmwareswa sakanatha kugwiritsidwa ntchito pamakina ogwiritsa ntchito a Linux, ndiye makampani omwe amapanga makina omwe amayenera kutulutsa kernel ndi zigamba zawo QEMU. Ndikofunika kukumbukira kuti uwu ndi mwayi wabwino kuyesa njira ya Live Patch yomwe idabwera ndi Disco Dingo, yomwe imalola kuti tikhazikitse mitundu yatsopano ya Kernel osayambiranso dongosololi.

Kukonza kwachinyengo zolakwika 4 za MDS zachitetezo

Tizilombo tonse tina timakhudza ma processor angapo a Intel ndipo titha kuloleza (mwina ngati sitikweza) a wogwiritsa ntchito yoyipa kuvumbula zinsinsi. Vutoli limakhudza mitundu yonse ya X-Buntu, yomwe mwa iwo imathandizidwabe 19.04, 18.10, 18.04, 16.04 ndi 14.04, yomalizayi mu mtundu wa ESM. Ndi nthawi yabwino kutsimikizira kuti thandizo la ESM lomwe limawonjezedwa pazaka 5 za kalendala likugwira ntchito.

Monga nthawi zonse kumasulidwa kwachitetezo, Canonical us imalimbikitsa kusinthidwa posachedwa. Kumbali inayi, imalimbikitsanso kulepheretsa SMT (Symmetric Multi-Threading kapena Hyper-Threading) kuchokera ku BIOS, chomwe chingakhale chosiyana kutengera kompyuta ndi mtundu wake wa BIOS.

Ngakhale tanena kale kuti Live Patch imatilepheretsa kuyambiranso poyambitsa mtundu wa Kernel, nthawi ino itha kutithandiza kutsimikizira kuti palibe uthenga womwe ukuwoneka kuti ukutifunsa kuti tiyambirenso, koma Canonical amalangiza kuyambitsanso kompyuta chifukwa cha kuuma kwa zovuta zachitetezo zomwe zidapezeka. Mtundu watsopano wa intel-microcode ndi 3.20190514.0. Chosiyana ndi mtundu wa kernel, ndipo mtundu wa Disco Dingo womwe watchulidwa kale wawonjezedwa 4.18.0.20.21 ya Ubuntu 18.10, 4.15.0-50.54 kwa Ubuntu 18.04 LTS ndi 4.4.0-148.174 ya Ubuntu 16.04 LTS ndi 14.04 ESM. Mukudziwa: sinthani tsopano, pazomwe zingachitike.

Nkhani yowonjezera:

Linux 5.1 tsopano ikupezeka. Izi ndi nkhani zake zopambana kwambiri