CVE-2021-47296 (GCVE-0-2021-47296)
Vulnerability from cvelistv5
Published
2024-05-21 14:35
Modified
2025-05-04 07:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak vcpu_put is not called if the user copy fails. This can result in preempt notifier corruption and crashes, among other issues.
References
Impacted products
Vendor Product Version
Linux Linux Version: b3cebfe8c1cadf1817939dcc3688a2504a69c662
Version: b3cebfe8c1cadf1817939dcc3688a2504a69c662
Version: b3cebfe8c1cadf1817939dcc3688a2504a69c662
Version: b3cebfe8c1cadf1817939dcc3688a2504a69c662
Version: b3cebfe8c1cadf1817939dcc3688a2504a69c662
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47296",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T19:22:38.048038Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:24.621Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:08.371Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/kvm/powerpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9bafc34dc4ad0cef18727c557f21ed3c3304df50",
              "status": "affected",
              "version": "b3cebfe8c1cadf1817939dcc3688a2504a69c662",
              "versionType": "git"
            },
            {
              "lessThan": "f38527f1890543cdfca8dfd06f75f9887cce6151",
              "status": "affected",
              "version": "b3cebfe8c1cadf1817939dcc3688a2504a69c662",
              "versionType": "git"
            },
            {
              "lessThan": "e14ef1095387f764d95614d3ec9e4d07c82a3533",
              "status": "affected",
              "version": "b3cebfe8c1cadf1817939dcc3688a2504a69c662",
              "versionType": "git"
            },
            {
              "lessThan": "a4a488915feaad38345cc01b80d52e8200ff5209",
              "status": "affected",
              "version": "b3cebfe8c1cadf1817939dcc3688a2504a69c662",
              "versionType": "git"
            },
            {
              "lessThan": "bc4188a2f56e821ea057aca6bf444e138d06c252",
              "status": "affected",
              "version": "b3cebfe8c1cadf1817939dcc3688a2504a69c662",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/kvm/powerpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.199",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.136",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.13.*",
              "status": "unaffected",
              "version": "5.13.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.199",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.136",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.54",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.13.6",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.14",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak\n\nvcpu_put is not called if the user copy fails. This can result in preempt\nnotifier corruption and crashes, among other issues."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:08:10.252Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50"
        },
        {
          "url": "https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151"
        },
        {
          "url": "https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252"
        }
      ],
      "title": "KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47296",
    "datePublished": "2024-05-21T14:35:19.341Z",
    "dateReserved": "2024-05-21T13:27:52.130Z",
    "dateUpdated": "2025-05-04T07:08:10.252Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47296\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:17.477\",\"lastModified\":\"2025-06-23T20:19:54.287\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nKVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak\\n\\nvcpu_put is not called if the user copy fails. This can result in preempt\\nnotifier corruption and crashes, among other issues.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KVM: PPC: correcci\u00f3n de fuga de kvm_arch_vcpu_ioctl vcpu_load. No se llama a vcpu_put si falla la copia del usuario. Esto puede provocar da\u00f1os y bloqueos del notificador preventivo, entre otros problemas.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.18\",\"versionEndExcluding\":\"4.19.199\",\"matchCriteriaId\":\"A14B3FB8-763B-434E-88A7-97AC33E54F7F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.136\",\"matchCriteriaId\":\"E1FCD98C-8886-4844-B7AF-C42731DF9465\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.54\",\"matchCriteriaId\":\"1BD5A2EE-859F-40FC-BDAC-167AAE37C870\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.13.6\",\"matchCriteriaId\":\"512C22FC-1524-4E6F-9E62-4F4B7B6E0576\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"71268287-21A8-4488-AA4F-23C473153131\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"23B9E5C6-FAB5-4A02-9E39-27C8787B0991\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:08.371Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47296\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-28T19:22:38.048038Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-28T19:22:47.399Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b3cebfe8c1cadf1817939dcc3688a2504a69c662\", \"lessThan\": \"9bafc34dc4ad0cef18727c557f21ed3c3304df50\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b3cebfe8c1cadf1817939dcc3688a2504a69c662\", \"lessThan\": \"f38527f1890543cdfca8dfd06f75f9887cce6151\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b3cebfe8c1cadf1817939dcc3688a2504a69c662\", \"lessThan\": \"e14ef1095387f764d95614d3ec9e4d07c82a3533\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b3cebfe8c1cadf1817939dcc3688a2504a69c662\", \"lessThan\": \"a4a488915feaad38345cc01b80d52e8200ff5209\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b3cebfe8c1cadf1817939dcc3688a2504a69c662\", \"lessThan\": \"bc4188a2f56e821ea057aca6bf444e138d06c252\", \"versionType\": \"git\"}], \"programFiles\": [\"arch/powerpc/kvm/powerpc.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.199\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.136\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.54\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.13.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/powerpc/kvm/powerpc.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50\"}, {\"url\": \"https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151\"}, {\"url\": \"https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533\"}, {\"url\": \"https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209\"}, {\"url\": \"https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nKVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak\\n\\nvcpu_put is not called if the user copy fails. This can result in preempt\\nnotifier corruption and crashes, among other issues.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T07:39:12.381Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47296\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T07:39:12.381Z\", \"dateReserved\": \"2024-05-21T13:27:52.130Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:35:19.341Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.