Nawuphi na umsebenzisi we-Ubuntu okwinqanaba eliphakathi uyazi ukuba bakhupha inguqulelo entsha yenkqubo yabo yokusebenza rhoqo emva kweenyanga ezintandathu, ukuba rhoqo emva kweminyaka emibini kukho inguqulelo ye-LTS, kwaye i-kernel inokuthatha ixesha elide ukuyihlaziya. Ngapha koko, xa isenza njalo, ikwenza oko kwiinguqulelo ze-LTS ukuba asilandeli amanyathelo ambalwa afana nalawo akwi-LTS. eli nqaku malunga nendlela yokugcina kwiFocal Fossa. Inyaniso kukuba i-kernel ihlaziywa, kodwa ukongeza iipatches zokhuseleko njengoko benzile kuzo zonke iinguqulelo ze Ubuntu ezixhaswa ngoku.
Kwiiyure ezimbalwa ezidlulileyo, iCanonical yapapashwa iingxelo ezintathu ze-USNNgokukodwa I-USN-5443-1, I-USN-5442-1 y I-USN-5444-1. Eyokuqala yazo ichaphazela zonke iinguqulelo ze-Ubuntu ezisaxhaswayo, ezisanda kukhutshwa Ubuntu 22.04, ekuphela kwenguqulelo engaxhaswayo ye-LTS, eyi-21.10, kunye ne-18.04 kunye ne-16.04, exhaswa ngoku ngenxa yokungena kwisigaba sayo se-ESM. , evumela ukuba iqhubeke nokufumana iipetshi zokhuseleko.
Ubuntu buhlaziya i-kernel yayo yokhuseleko
Kwinkcazo ye-USN-5443-1, sifunda iintsilelo ezimbini:
(1)Ucwangciso lothungelwano lwe-Linux kernel kunye nesistim esezantsi emgceni ayenzanga ukubala kwereferensi ngokuchanekileyo kwezinye iimeko, okukhokelela kumngcipheko wosetyenziso emva-kwasimahla. Umhlaseli wasekuhlaleni unokusebenzisa oku ukwenza ukwaliwa kwenkonzo (ukuphazamiseka kwenkqubo) okanye aphumeze ikhowudi engafanelekanga. (2)I-Linux kernel ibinganyanzelisi ngokuchanekileyo izithintelo zeseccomp kwezinye iimeko. Umhlaseli wasekhaya unokusebenzisa oku ukugqitha imida yebhokisi yesanti ecetyiweyo.
Malunga ne-USN-5442-1, echaphazela kuphela i-20.04 kunye ne-18.04, ezinye iibhugi ezintathu:
(1)Umsebenzi wothungelwano weQueuing kunye noCwangciso lwenkqubo esezantsi yeLinux kernel ayenzanga ireferensi yokubala ngokuchanekileyo kwezinye iimeko, ezikhokelela kusetyenziso-emva-ekusesichengeni kwasimahla. Umhlaseli wasekuhlaleni unokusebenzisa oku ukwenza ukwaliwa kwenkonzo (ukuphazamiseka kwenkqubo) okanye aphumeze ikhowudi engafanelekanga. (2)Inkqubo esezantsi ye-io_uring ye-Linux kernel iqulathe ukuphuphuma okupheleleyo. Umhlaseli wasekhaya angayisebenzisa ukwenza ukwaliwa kwenkonzo (ukuphazamiseka kwenkqubo) okanye aphumeze ikhowudi engafanelekanga. (3)I-Linux kernel ibinganyanzelisi ngokuchanekileyo izithintelo zeseccomp kwezinye iimeko. Umhlaseli wasekhaya unokusebenzisa oku ukugqitha imida yebhokisi yesanti ecetyiweyo.
Kwaye malunga ne-USN-5444-1, echaphazela Ubuntu 22.04 kunye ne-20.04;
INethiwekhi yokuQula nokuCwangcisa inkqubo esezantsi yeLinux kernel ayenzanga ireferensi yokubala ngokuchanekileyo kwezinye iimeko, ezikhokelela kusetyenziso-emva-ekukhuselekeni kwasimahla. Umhlaseli wasekuhlaleni unokusebenzisa oku ukwenza ukwaliwa kwenkonzo (ukuphazamiseka kwenkqubo) okanye aphumeze ikhowudi engafanelekanga.
Ukuze ugweme zonke ezi ngxaki, into kuphela ekufuneka yenziwe kukuhlaziya i-kernel, kwaye oku kunokwenziwa ukuhlaziya ngokuzenzekelayo ngesixhobo sohlaziyo ngayo nayiphi na incasa esemthethweni yoBuntu. Kwakhona, khumbula ukuba kufanelekile ukuba inkqubo yokusebenza ihlale ihlaziywa kakuhle, ubuncinci kunye neepatches zokhuseleko zamva nje.