# CVE-2026-31569

> Vulnerability · severity: **HIGH** (CVSS 7.3).

## Description

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[].

## Key facts

- **CVE ID:** CVE-2026-31569
- **Published:** 2026-04-24
- **CVSS severity:** HIGH
- **CVSS base score:** 7.3
- **CWE codes:** CWE-125

## Affected products

- `linux:linux_kernel`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31569

## Citation

> AI Analytics. CVE-2026-31569. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-31569. Derived from NIST NVD. Licensed CC0.

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