Vulnerability-Lookup

GHSA-JXX3-RVF2-64XP

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

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

LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()

Function kvm_vcpu_ioctl_interrupt() can be called from userspace, here add irq validility cheking in kvm_vcpu_ioctl_interrupt().

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72294"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:01Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()\n\nFunction kvm_vcpu_ioctl_interrupt() can be called from userspace, here\nadd irq validility cheking in kvm_vcpu_ioctl_interrupt().",
  "id": "GHSA-jxx3-rvf2-64xp",
  "modified": "2026-08-17T06:33:22Z",
  "published": "2026-08-15T06:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72294"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09b318ab77b7a4fc9987fd98d1525fc55ddc2617"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15469ba0284c7cc01c38493391e9e73b918833c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4574547e04a47ad498149576f65b84475ea6f4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efe27b19a15c384cad7c80de399f3107ab070e6d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72294 (GCVE-0-2026-72294)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-08-17 05:42

Title

LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()

Summary

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt() Function kvm_vcpu_ioctl_interrupt() can be called from userspace, here add irq validility cheking in kvm_vcpu_ioctl_interrupt().

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/15469ba0284c7cc01…
https://git.kernel.org/stable/c/efe27b19a15c384ca…
https://git.kernel.org/stable/c/d4574547e04a47ad4…
https://git.kernel.org/stable/c/09b318ab77b7a4fc9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f45ad5b8aa9335bc6b30331b739e778f2f730b35 , < 15469ba0284c7cc01c38493391e9e73b918833c4 (git) Affected: f45ad5b8aa9335bc6b30331b739e778f2f730b35 , < efe27b19a15c384cad7c80de399f3107ab070e6d (git) Affected: f45ad5b8aa9335bc6b30331b739e778f2f730b35 , < d4574547e04a47ad498149576f65b84475ea6f4c (git) Affected: f45ad5b8aa9335bc6b30331b739e778f2f730b35 , < 09b318ab77b7a4fc9987fd98d1525fc55ddc2617 (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/vcpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "15469ba0284c7cc01c38493391e9e73b918833c4",
              "status": "affected",
              "version": "f45ad5b8aa9335bc6b30331b739e778f2f730b35",
              "versionType": "git"
            },
            {
              "lessThan": "efe27b19a15c384cad7c80de399f3107ab070e6d",
              "status": "affected",
              "version": "f45ad5b8aa9335bc6b30331b739e778f2f730b35",
              "versionType": "git"
            },
            {
              "lessThan": "d4574547e04a47ad498149576f65b84475ea6f4c",
              "status": "affected",
              "version": "f45ad5b8aa9335bc6b30331b739e778f2f730b35",
              "versionType": "git"
            },
            {
              "lessThan": "09b318ab77b7a4fc9987fd98d1525fc55ddc2617",
              "status": "affected",
              "version": "f45ad5b8aa9335bc6b30331b739e778f2f730b35",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kvm/vcpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()\n\nFunction kvm_vcpu_ioctl_interrupt() can be called from userspace, here\nadd irq validility cheking in kvm_vcpu_ioctl_interrupt()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is reached only through local KVM ioctls on /dev/kvm (KVM_CREATE_VM, KVM_CREATE_VCPU, KVM_INTERRUPT on the vCPU fd); kvm_arch_vcpu_unlocked_ioctl() passes attacker-controlled irq values into kvm_vcpu_ioctl_interrupt() with no network, adjacent, or physical entry path.\nAC:L - One KVM_INTERRUPT ioctl with irq \u003e= 15 or irq=0x80000000 deterministically calls kvm_queue_irq()/kvm_dequeue_irq(), which invoke set_bit()/clear_bit() far past the 15-bit irq_pending/irq_clear fields; no race, timing window, or attacker-uncontrollable memory layout is required.\nPR:L - Exploitation needs only permission to open /dev/kvm and manage a VM/vCPU (commonly kvm group membership or CAP_SYS_ADMIN obtainable inside a user namespace); it does not require init-namespace root or capabilities unavailable to an unprivileged local tenant.\nUI:N - No victim or operator interaction beyond the attacker\u0027s own KVM setup is required; once /dev/kvm access exists, a single malicious KVM_INTERRUPT ioctl on a controlled vCPU fd triggers the out-of-bounds bit manipulation.\nS:C - A KVM VM operator can corrupt host kernel memory in kvm_vcpu_arch from the KVM userspace interface, crossing the guest/VM-to-host virtualization boundary rather than confining impact to the attacker\u0027s own VM security scope.\nC:H - Unvalidated irq indices make set_bit()/clear_bit() operate many words beyond irq_pending/irq_clear, corrupting adjacent host vcpu-\u003earch fields and potentially neighboring slab objects; per kernel guidance this out-of-bounds memory corruption is leverageable for host kernel information disclosure.\nI:H - The attacker fully controls the bit index via the irq argument, yielding controlled out-of-bounds set_bit()/clear_bit() writes across the vCPU kmem_cache allocation that can be steered toward host kernel privilege escalation or code execution.\nA:H - Corrupting irq_pending-adjacent kvm_vcpu_arch state or memory beyond the vCPU object can immediately oops or panic the host kernel when the vCPU runs or on subsequent KVM operations, constituting high availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:42:26.951Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/15469ba0284c7cc01c38493391e9e73b918833c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/efe27b19a15c384cad7c80de399f3107ab070e6d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4574547e04a47ad498149576f65b84475ea6f4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/09b318ab77b7a4fc9987fd98d1525fc55ddc2617"
        }
      ],
      "title": "LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72294",
    "datePublished": "2026-08-15T05:55:14.553Z",
    "dateReserved": "2026-08-09T03:40:39.917Z",
    "dateUpdated": "2026-08-17T05:42:26.951Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-JXX3-RVF2-64XP

CVE-2026-72294 (GCVE-0-2026-72294)

Tags

Sightings

Nomenclature