CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.8. It affects Linux.
CVE
CVE-2026-31558
Severity
HIGH
CVSS
8.8
EPSS
0.13%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust kvm_get_vcpu_by_cpuid() takes a cpuid parameter whose type is int, so cpuid can be negative. Let kvm_get_vcpu_by_cpuid() return NULL for this case so as to make it more robust. This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].
Related CVEs
Other vulnerabilities affecting the same vendor(s)