GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-47373 (GCVE-0-2021-47373)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-11 13:53
VLAI
Title
irqchip/gic-v3-its: Fix potential VPE leak on error
Summary
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In its_vpe_irq_domain_alloc, when its_vpe_init() returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which is the index of the loop iterating over the VPEs. [maz: fixed commit message]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:38 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < 7d39992d45acd6f2d6b2f62389c55b61fb3d486b (git)
Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < 5701e8bff314c155e7afdc467b1e0389d86853d0 (git)
Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < 42d3711c23781045e7a5cd28536c774b9a66d20b (git)
Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < 568662e37f927e3dc3e475f3ff7cf4ab7719c5e7 (git)
Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < e0c1c2e5da19685a20557a50f10c6aa4fa26aa84 (git)
Affected: 7d75bbb4bc1ad90386776459d37e4ddfe605671e , < 280bef512933b2dda01d681d8cbe499b98fc5bdd (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.14
Unaffected: 0 , < 4.14 (semver)
Unaffected: 4.14.249 , ≤ 4.14.* (semver)
Unaffected: 4.19.209 , ≤ 4.19.* (semver)
Unaffected: 5.4.150 , ≤ 5.4.* (semver)
Unaffected: 5.10.70 , ≤ 5.10.* (semver)
Unaffected: 5.14.9 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:08.615Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47373",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:38:26.323793Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:45.779Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-gic-v3-its.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7d39992d45acd6f2d6b2f62389c55b61fb3d486b",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            },
            {
              "lessThan": "5701e8bff314c155e7afdc467b1e0389d86853d0",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            },
            {
              "lessThan": "42d3711c23781045e7a5cd28536c774b9a66d20b",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            },
            {
              "lessThan": "568662e37f927e3dc3e475f3ff7cf4ab7719c5e7",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            },
            {
              "lessThan": "e0c1c2e5da19685a20557a50f10c6aa4fa26aa84",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            },
            {
              "lessThan": "280bef512933b2dda01d681d8cbe499b98fc5bdd",
              "status": "affected",
              "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-gic-v3-its.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.249",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.14.*",
              "status": "unaffected",
              "version": "5.14.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.249",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.209",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.150",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.70",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.14.9",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3-its: Fix potential VPE leak on error\n\nIn its_vpe_irq_domain_alloc, when its_vpe_init() returns an error,\nthere is an off-by-one in the number of VPEs to be freed.\n\nFix it by simply passing the number of VPEs allocated, which is the\nindex of the loop iterating over the VPEs.\n\n[maz: fixed commit message]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:53:27.247Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
        },
        {
          "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
        },
        {
          "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
        },
        {
          "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
        }
      ],
      "title": "irqchip/gic-v3-its: Fix potential VPE leak on error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47373",
    "datePublished": "2024-05-21T15:03:37.789Z",
    "dateReserved": "2024-05-21T14:58:30.810Z",
    "dateUpdated": "2026-05-11T13:53:27.247Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-47373",
      "date": "2026-09-19",
      "epss": "0.00251",
      "percentile": "0.16803"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C9BA2B8D-3D51-420A-8307-752B0F4519FB",
                  "versionEndExcluding": "4.14.249",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "21C23429-F802-4256-B3C2-9EEA76AC11FF",
                  "versionEndExcluding": "4.19.209",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "87771E47-210D-48FA-95BC-48A86225B30F",
                  "versionEndExcluding": "5.4.150",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "A2A50090-4483-4F44-9147-BF0B012FBF7E",
                  "versionEndExcluding": "5.10.70",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "1B31D6C1-A751-438D-906B-0C56B789D498",
                  "versionEndExcluding": "5.14.9",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
                  "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*",
                  "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3-its: Fix potential VPE leak on error\n\nIn its_vpe_irq_domain_alloc, when its_vpe_init() returns an error,\nthere is an off-by-one in the number of VPEs to be freed.\n\nFix it by simply passing the number of VPEs allocated, which is the\nindex of the loop iterating over the VPEs.\n\n[maz: fixed commit message]"
        },
        {
          "lang": "es",
          "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v3-its: soluciona una posible fuga de VPE en caso de error. En its_vpe_irq_domain_alloc, cuando its_vpe_init() devuelve un error, hay un error de uno en uno en el n\u00famero de VPE. para ser liberado. Solucionelo simplemente pasando el n\u00famero de VPE asignados, que es el \u00edndice del bucle que se itera sobre los VPE. [maz: mensaje de confirmaci\u00f3n fijo]"
        }
      ],
      "id": "CVE-2021-47373",
      "lastModified": "2024-12-26T17:57:35.547",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2024-05-21T15:15:23.157",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-193"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/irqchip/irq-gic-v3-its.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "7d39992d45acd6f2d6b2f62389c55b61fb3d486b",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5701e8bff314c155e7afdc467b1e0389d86853d0",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "42d3711c23781045e7a5cd28536c774b9a66d20b",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "568662e37f927e3dc3e475f3ff7cf4ab7719c5e7",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e0c1c2e5da19685a20557a50f10c6aa4fa26aa84",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "280bef512933b2dda01d681d8cbe499b98fc5bdd",
                    "status": "affected",
                    "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/irqchip/irq-gic-v3-its.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.14"
                  },
                  {
                    "lessThan": "4.14",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.14.*",
                    "status": "unaffected",
                    "version": "4.14.249",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.209",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.150",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.70",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.14.*",
                    "status": "unaffected",
                    "version": "5.14.9",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "5.15",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C9BA2B8D-3D51-420A-8307-752B0F4519FB",
                    "versionEndExcluding": "4.14.249",
                    "versionStartIncluding": "4.14",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "21C23429-F802-4256-B3C2-9EEA76AC11FF",
                    "versionEndExcluding": "4.19.209",
                    "versionStartIncluding": "4.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "87771E47-210D-48FA-95BC-48A86225B30F",
                    "versionEndExcluding": "5.4.150",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A2A50090-4483-4F44-9147-BF0B012FBF7E",
                    "versionEndExcluding": "5.10.70",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1B31D6C1-A751-438D-906B-0C56B789D498",
                    "versionEndExcluding": "5.14.9",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3-its: Fix potential VPE leak on error\n\nIn its_vpe_irq_domain_alloc, when its_vpe_init() returns an error,\nthere is an off-by-one in the number of VPEs to be freed.\n\nFix it by simply passing the number of VPEs allocated, which is the\nindex of the loop iterating over the VPEs.\n\n[maz: fixed commit message]"
          },
          {
            "lang": "es",
            "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v3-its: soluciona una posible fuga de VPE en caso de error. En its_vpe_irq_domain_alloc, cuando its_vpe_init() devuelve un error, hay un error de uno en uno en el n\u00famero de VPE. para ser liberado. Solucionelo simplemente pasando el n\u00famero de VPE asignados, que es el \u00edndice del bucle que se itera sobre los VPE. [maz: mensaje de confirmaci\u00f3n fijo]"
          }
        ],
        "id": "CVE-2021-47373",
        "lastModified": "2026-06-17T04:17:19.323",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2021-47373",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:38:26.323793Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-05-21T15:15:23.157",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-193"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:49:59+00:00",
      "cve": "CVE-2021-47373",
      "id": "CVE-2021-47373",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:fixed": "316",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: irqchip/gic-v3-its: Fix potential VPE leak on error",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47373.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-13T23:56:04Z",
      "cve": "CVE-2021-47373",
      "id": "CVE-2021-47373",
      "initial_release_date": "2024-05-24T15:21:34Z",
      "product_status:known_affected": "382",
      "product_status:known_not_affected": "73",
      "product_status:recommended": "564",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47373",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47373.json",
      "version": "65"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T05:32:08.615Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-47373",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T15:38:26.323793Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:18.524Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/irqchip/irq-gic-v3-its.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "7d39992d45acd6f2d6b2f62389c55b61fb3d486b",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                },
                {
                  "lessThan": "5701e8bff314c155e7afdc467b1e0389d86853d0",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                },
                {
                  "lessThan": "42d3711c23781045e7a5cd28536c774b9a66d20b",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                },
                {
                  "lessThan": "568662e37f927e3dc3e475f3ff7cf4ab7719c5e7",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                },
                {
                  "lessThan": "e0c1c2e5da19685a20557a50f10c6aa4fa26aa84",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                },
                {
                  "lessThan": "280bef512933b2dda01d681d8cbe499b98fc5bdd",
                  "status": "affected",
                  "version": "7d75bbb4bc1ad90386776459d37e4ddfe605671e",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/irqchip/irq-gic-v3-its.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.14"
                },
                {
                  "lessThan": "4.14",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.249",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.209",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.150",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.70",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.14.*",
                  "status": "unaffected",
                  "version": "5.14.9",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.15",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.249",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.209",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.150",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.70",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.14.9",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15",
                      "versionStartIncluding": "4.14",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3-its: Fix potential VPE leak on error\n\nIn its_vpe_irq_domain_alloc, when its_vpe_init() returns an error,\nthere is an off-by-one in the number of VPEs to be freed.\n\nFix it by simply passing the number of VPEs allocated, which is the\nindex of the loop iterating over the VPEs.\n\n[maz: fixed commit message]"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T07:09:36.235Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b"
            },
            {
              "url": "https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0"
            },
            {
              "url": "https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b"
            },
            {
              "url": "https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7"
            },
            {
              "url": "https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84"
            },
            {
              "url": "https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd"
            }
          ],
          "title": "irqchip/gic-v3-its: Fix potential VPE leak on error",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47373",
        "datePublished": "2024-05-21T15:03:37.789Z",
        "dateReserved": "2024-05-21T14:58:30.810Z",
        "dateUpdated": "2025-05-04T07:09:36.235Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.