Iindaba kutshanje ukuba kwindawo yokugcina izinto apho ukukhutshwa kwe kernel ye I-Linux 5.19 ifumene enye isethi yotshintsho enxulumene nesixokelelwano se-DRM (UMlawuli oBonelela ngokuthe ngqo) kunye nabaqhubi bemizobo.
Iseti yesiqwenga yamkelwe inika umdla kuba ibandakanya 495k imigca yekhowudi, enokuthelekiswa nobukhulu obupheleleyo beenguqu kwisebe ngalinye le-kernel (umzekelo, imigca ye-506k yekhowudi yongezwa kwi-kernel 5.17).
molo linus
Esi sesona sicelo siphambili sokutsalwa kwe-drm ye-5.19-rc1.
Isishwankathelo esiqhelekileyo esingezantsi, i-Intel yenze ukuba i-DG2 isebenze kwii-SKU ezithile zeelaptop,
I-AMD iqalise inkxaso entsha ye-GPU, i-msm inomsebenzisi owabelwe ulawulo lwe-VA.Iingxabano:
Ndidibanise nomthi wakho apha kwiiyure ezimbalwa ezidlulileyo, bekukho iingxabano ezimbini ze-i915
kodwa bezilula kakhulu ukuzisombulula ke ndicinga ukuba ungazibamba.Akukho zinto zininzi ngaphandle kobukumkani bam apha.
Njengesiqhelo undazise ukuba ikhona ingxaki,
Kukhankanyiwe ukuba kwi patch efunyenweyo malunga 400 imigca ifakiwe zidityanisiwe zivela kwiifayile zentloko yedatha ye-ASIC yenziwe ngokuzenzekelayo kumqhubi we-AMD GPU.
Ukongeza koku, kukwagxininiswa ukuba enye imigca engamawaka angama-22,5 ibonelela ngokuphunyezwa kokuqala kwenkxaso ye-AMD SoC21. Ubungakanani bubonke bomqhubi we-AMD GPU bugqithise kwimigca ye-4 yezigidi zekhowudi (uthelekiso, yonke i-Linux 1.0 kernel ibandakanya i-176 yemigca yekhowudi, i-2,0 - 778 lamawaka, i-2,4 - i-3,4 yezigidi, i-5,13 - i-29,2 yezigidi). Ukongeza kwi-SoC21, umqhubi we-AMD uquka inkxaso ye-SMU 13.x (Iyunithi yoLawulo lweSistim), inkxaso ehlaziyiweyo ye-USB-C kunye ne-GPUVM, kwaye ilungele ukuxhasa isizukulwana esilandelayo se-RDNA3 (RX 7000) kunye ne-CDNA (i-AMD instinct) .
Kumqhubi we-Intel, utshintsho oluninzi (5,6 amawaka) ikwikhowudi yolawulo lwamandla. Kwakhona kongezwe ii-ID zomqhubi we-Intel ze-Intel DG2 (i-Arc Alchemist) ii-GPU ezisetyenziswa kwiilaptops, zibonelele ngenkxaso yokuqala ye-Intel Raptor Platform Lake-P (RPL-P), ulwazi olongezelelekileyo malunga namakhadi emizobo e-Arctic Sound-M, aphunyezwe i-ABI yeenjini zekhompyutha, yongeze inkxaso yefomathi ye-Tile4 yamakhadi e-DG2, iphunyezwe inkxaso ye-DisplayPort HDR kwiinkqubo ezisekelwe kwi-Haswell microarchitecture.
Ngelixa kwicala le umlawuli omtsha, iyonke, utshintsho luchaphazele malunga nemigca elikhulu yekhowudi (utshintsho lwenziwe ukuba kusetyenziswe umqhubi we-drm_gem_plane_helper_prepare_fb, unikezelo lwememori engatshintshiyo kwezinye izakhiwo kunye nezinto eziguquguqukayo). Ngokubhekiselele kusetyenziso lweemodyuli ezivulekileyo ze-Nouveau kernel yi-NVIDIA, umsebenzi ukuza kuthi ga ngoku uncitshisiwe ekuchongeni nasekususeni iziphene. Kwixesha elizayo, kucetywa ukusebenzisa i-firmware ekhutshiweyo ukuphucula ukusebenza komlawuli.
Ukuba ufuna ukwazi ngakumbi malunga notshintsho olucetywayo kuguqulelo olulandelayo lweLinux 5.19, ungajonga iinkcukacha kwi ukulandela ikhonkco.
Eyokugqibela kodwa engancinananga, Kukwafanelekile ukukhankanya ukuba ubuthathaka buchongiwe mva nje (I-CVE-2022-1729) kwi Linux kernel enokuvumela umsebenzisi wasekhaya ukufumana ufikelelo lwengcambu kwindlela.
Ukuba sesichengeni ibangelwa yimeko yogqatso kwi-perf subsystem, enokusetyenziselwa ukuqalisa ufikelelo kwindawo esele ikhululwe yenkumbulo ye-kernel (ukusetyenziswa-emva kokukhululeka). Ingxaki ibonakaliswe ukususela ekukhululweni kwe-kernel 4.0-rc1. Ukusebenziseka kuqinisekisiwe kwiinguqulelo 5.4.193+.
esi sisibhengezo sobungozi obutsha (CVE-2022-1729) kwi-perf subsystem. ye Linux kernel. Ingxaki yimeko yogqatso eboniswe ukuba ivumele inyhweba yendawo ukunyuka ukuya kwiingcambu kuguqulelo lwe kernel yangoku >= 5.4.193, kodwa ibug ibonakala ikhona kwi kernel uguqulelo 4.0-rc1 (isiziba silungisa ukuzinikela kolu guqulelo).
Ngethamsanqa, unikezelo olukhulu lweLinux luhlala luthintela ukusetyenziswa kweperf kubasebenzisi abangenalungelo nge ukucwangcisa i sysctl variable kernel.perf_event_paranoid >= 3, imele ngokufanelekileyo ubuthathaka obungenabungozi.
Ulungiso okwangoku lufumaneka kuphela njengepetshi. Ingozi yokuba sesichengeni iyathotywa yinto yokuba uninzi losasazo lunqanda ufikelelo kwiperf kubasebenzisi abangenamalungelo ngokungagqibekanga. Njengolungiso lokhuseleko, unokuseta iparamitha ye-sysctl kernel.perf_event_paranoid ukuya ku-3.