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VulnerabilityPublished Updated

CVE-2026-31564: Linux kernel · LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 12 Nov 2026, 03:33 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

AI-suggested

A fix has been applied in the Linux kernel to correct the base address calculation in kvm_eiointc_regs_access(). Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the input; therefore, check the official Linux kernel advisories for the exact fixed version and apply the update accordingly.

Description

A vulnerability in the Linux kernel's KVM implementation for LoongArch architecture was fixed by correcting the base address calculation in the function kvm_eiointc_regs_access(). The issue involved improper calculation of the register base address due to incorrect type conversion of the array base address before adding an offset.

References

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