Vulnerability-Lookup

GHSA-FG32-8VPM-2J63

Vulnerability from github – Published: 2026-01-31 12:30 – Updated: 2026-01-31 12:30

Details

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

LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()

In kvm_ioctl_create_device(), kvm_device has allocated memory, kvm_device->destroy() seems to be supposed to free its kvm_device struct, but kvm_pch_pic_destroy() is not currently doing this, that would lead to a memory leak.

So, fix it.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23027"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-31T12:16:06Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()\n\nIn kvm_ioctl_create_device(), kvm_device has allocated memory,\nkvm_device-\u003edestroy() seems to be supposed to free its kvm_device\nstruct, but kvm_pch_pic_destroy() is not currently doing this, that\nwould lead to a memory leak.\n\nSo, fix it.",
  "id": "GHSA-fg32-8vpm-2j63",
  "modified": "2026-01-31T12:30:12Z",
  "published": "2026-01-31T12:30:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23027"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cf342a7c3adc5877837b53bbceb5cc9eff60bbf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc53a66227af08d868face4b33fa8b2e1ba187ed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23027 (GCVE-0-2026-23027)

Vulnerability from cvelistv5 – Published: 2026-01-31 11:42 – Updated: 2026-01-31 11:42

Title

LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()

Summary

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy() In kvm_ioctl_create_device(), kvm_device has allocated memory, kvm_device->destroy() seems to be supposed to free its kvm_device struct, but kvm_pch_pic_destroy() is not currently doing this, that would lead to a memory leak. So, fix it.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fc53a66227af08d86…
	https://git.kernel.org/stable/c/1cf342a7c3adc5877…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fc53a66227af08d868face4b33fa8b2e1ba187ed (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1cf342a7c3adc5877837b53bbceb5cc9eff60bbf (git)

Linux

Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc6 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/intc/pch_pic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fc53a66227af08d868face4b33fa8b2e1ba187ed",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "1cf342a7c3adc5877837b53bbceb5cc9eff60bbf",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/intc/pch_pic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()\n\nIn kvm_ioctl_create_device(), kvm_device has allocated memory,\nkvm_device-\u003edestroy() seems to be supposed to free its kvm_device\nstruct, but kvm_pch_pic_destroy() is not currently doing this, that\nwould lead to a memory leak.\n\nSo, fix it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-31T11:42:06.183Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fc53a66227af08d868face4b33fa8b2e1ba187ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/1cf342a7c3adc5877837b53bbceb5cc9eff60bbf"
        }
      ],
      "title": "LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23027",
    "datePublished": "2026-01-31T11:42:06.183Z",
    "dateReserved": "2026-01-13T15:37:45.941Z",
    "dateUpdated": "2026-01-31T11:42:06.183Z",
    "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

GHSA-FG32-8VPM-2J63

CVE-2026-23027 (GCVE-0-2026-23027)

Tags

Sightings

Nomenclature