Vulnerability-Lookup

FKIE_CVE-2026-31564

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access() In function kvm_eiointc_regs_access(), the register base address is caculated from array base address plus offset, the offset is absolute value from the base address. The data type of array base address is u64, it should be converted into the "void *" type and then plus the offset.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6bcfb7f46d667b04bd1a1169ccedf5fb699c60df
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()\n\nIn function kvm_eiointc_regs_access(), the register base address is\ncaculated from array base address plus offset, the offset is absolute\nvalue from the base address. The data type of array base address is\nu64, it should be converted into the \"void *\" type and then plus the\noffset."
    }
  ],
  "id": "CVE-2026-31564",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:30.850",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6bcfb7f46d667b04bd1a1169ccedf5fb699c60df"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31564 (GCVE-0-2026-31564)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:35 – Updated: 2026-04-24 14:35

Title

LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c4f0a9481cf0dd7c7…
	https://git.kernel.org/stable/c/6bcfb7f46d667b04b…

Impacted products

Vendor

Product

Version

Linux

Affected: d3e43a1f34acbb9a814337fc5624765538e5a274 , < c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82 (git)
Affected: d3e43a1f34acbb9a814337fc5624765538e5a274 , < 6bcfb7f46d667b04bd1a1169ccedf5fb699c60df (git)

Linux

Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/intc/eiointc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82",
              "status": "affected",
              "version": "d3e43a1f34acbb9a814337fc5624765538e5a274",
              "versionType": "git"
            },
            {
              "lessThan": "6bcfb7f46d667b04bd1a1169ccedf5fb699c60df",
              "status": "affected",
              "version": "d3e43a1f34acbb9a814337fc5624765538e5a274",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/intc/eiointc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()\n\nIn function kvm_eiointc_regs_access(), the register base address is\ncaculated from array base address plus offset, the offset is absolute\nvalue from the base address. The data type of array base address is\nu64, it should be converted into the \"void *\" type and then plus the\noffset."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:35:45.302Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82"
        },
        {
          "url": "https://git.kernel.org/stable/c/6bcfb7f46d667b04bd1a1169ccedf5fb699c60df"
        }
      ],
      "title": "LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31564",
    "datePublished": "2026-04-24T14:35:45.302Z",
    "dateReserved": "2026-03-09T15:48:24.117Z",
    "dateUpdated": "2026-04-24T14:35:45.302Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31564

CVE-2026-31564 (GCVE-0-2026-31564)

Tags

Sightings

Nomenclature