In the Linux kernel, the following vulnerability has been resolved:
LoongArch: KVM: Handle the case that EIOINTC's coremap is empty
EIOINTC's coremap in eiointc_update_sw_coremap() can be empty, currently we get a cpuid with -1 in this case, but we actually need 0 because it's similar as the case that cpuid >= 4.
This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].
Exploitability
AV:LAC:LPR:LUI:NScope
S:CImpact
C:LI:NA:H7.3/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H