# CVE-2026-31553

> Vulnerability · severity: **HIGH** (CVSS 8.8).

## Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()

Using "(u64 __user *)hva + offset" to get the virtual addresses of S1/S2
descriptors looks really wrong, if offset is not zero. What we want to get
for swapping is hva + offset, not hva + offset*8. ;-)

Fix it.

## Key facts

- **CVE ID:** CVE-2026-31553
- **Published:** 2026-04-24
- **CVSS severity:** HIGH
- **CVSS base score:** 8.8
- **CWE codes:** NVD-CWE-noinfo

## Affected products

- `linux:linux_kernel`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31553

## Citation

> AI Analytics. CVE-2026-31553. Retrieved 2026-07-31 from https://api.ai-analytics.org/cve/CVE-2026-31553. Derived from NIST NVD. Licensed CC0.

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