Achọpụtala adịghị ike (CVE-915-2022) na onye ọkwọ ụgbọ ala Intel GPU (i4139) nke nwere ike ibute nrụrụ ebe nchekwa ma ọ bụ mwepu data site na ebe nchekwa kernel. Okwu a pụtara na-amalite na Linux kernel 5.4 ma na-emetụta ọgbọ iri na abụọ Intel agbakwunyere na GPU dị iche iche, gụnyere Tiger Lake, Rocket Lake, Alder Lake, DG12, Raptor Lake, DG1, Arctic Sound, na ezinụlọ Meteor Lake.
Ihe kpatara nsogbu a bụ njehie mgbagha nke na-eme ka onye ọkwọ ụgbọ ala vidiyo na-ekpochapụ TLB na ezighi ezi n'akụkụ GPU na ngwaike ụfọdụ. N'ọnọdụ ụfọdụ, nrụpụta TLB emeghị ma ọlị. Mwepu nke TLB na-ezighi ezi nwere ike iduga ohere nke usoro site na iji GPU ịnweta ibe ebe nchekwa anụ ahụ na-abụghị nke usoro enyere, nke enwere ike iji gụọ data mba ọzọ ma ọ bụ ebe nchekwa mebiri emebi na usoro mba ọzọ. E kpebibeghị ma enwere ike iji adịghị ike ahụ mee ihe nrụrụ aka ebe nchekwa na adreesị achọrọ.
isi: opennet.ru