CVE-2021-47116 (GCVE-0-2021-47116)

Vulnerability from cvelistv5 – Published: 2024-03-15 20:14 – Updated: 2026-05-23 15:19
VLAI
Title
ext4: fix memory leak in ext4_mb_init_backend on error path.
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_mb_init_backend on error path. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: df61d3cff422433527d3bc388f69484f0781d226 , < 2050c6e5b161e5e25ce3c420fef58b24fa388a49 (git)
Affected: f91436d55a279f045987e8b8c1385585dca54be9 , < 04fb2baa0b147f51db065a1b13a11954abe592d0 (git)
Affected: f91436d55a279f045987e8b8c1385585dca54be9 , < a8867f4e3809050571c98de7a2d465aff5e4daf5 (git)
Affected: 9e7af67e9521fb5cbb5b01aca22921c313c2e48e (git)
Affected: 5.10.27 , < 5.10.43 (semver)
Affected: 5.11.11 , < 5.12 (semver)
Create a notification for this product.
Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.10.43 , ≤ 5.10.* (semver)
Unaffected: 5.12.10 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47116",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-05T17:36:29.410225Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:13:30.143Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:24:39.910Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/mballoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2050c6e5b161e5e25ce3c420fef58b24fa388a49",
              "status": "affected",
              "version": "df61d3cff422433527d3bc388f69484f0781d226",
              "versionType": "git"
            },
            {
              "lessThan": "04fb2baa0b147f51db065a1b13a11954abe592d0",
              "status": "affected",
              "version": "f91436d55a279f045987e8b8c1385585dca54be9",
              "versionType": "git"
            },
            {
              "lessThan": "a8867f4e3809050571c98de7a2d465aff5e4daf5",
              "status": "affected",
              "version": "f91436d55a279f045987e8b8c1385585dca54be9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9e7af67e9521fb5cbb5b01aca22921c313c2e48e",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.43",
              "status": "affected",
              "version": "5.10.27",
              "versionType": "semver"
            },
            {
              "lessThan": "5.12",
              "status": "affected",
              "version": "5.11.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/mballoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.43",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.43",
                  "versionStartIncluding": "5.10.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.12.10",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.13",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.11.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_mb_init_backend on error path.\n\nFix a memory leak discovered by syzbot when a file system is corrupted\nwith an illegally large s_log_groups_per_flex."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:19:20.674Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49"
        },
        {
          "url": "https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5"
        }
      ],
      "title": "ext4: fix memory leak in ext4_mb_init_backend on error path.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47116",
    "datePublished": "2024-03-15T20:14:23.564Z",
    "dateReserved": "2024-03-04T18:12:48.837Z",
    "dateUpdated": "2026-05-23T15:19:20.674Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-47116",
      "date": "2026-05-25",
      "epss": "0.00018",
      "percentile": "0.04901"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"5.10.43\", \"matchCriteriaId\": \"EED29F26-07A5-4096-A687-701C4F98A541\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.12.10\", \"matchCriteriaId\": \"27384800-AB48-4C08-891E-34B66F5FC4AA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"DA610E30-717C-4700-9F77-A3C9244F3BFD\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*\", \"matchCriteriaId\": \"1ECD33F5-85BE-430B-8F86-8D7BD560311D\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\next4: fix memory leak in ext4_mb_init_backend on error path.\\n\\nFix a memory leak discovered by syzbot when a file system is corrupted\\nwith an illegally large s_log_groups_per_flex.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: ext4: corrige la p\\u00e9rdida de memoria en ext4_mb_init_backend en la ruta de error. Solucione una p\\u00e9rdida de memoria descubierta por syzbot cuando un sistema de archivos est\\u00e1 da\\u00f1ado con un s_log_groups_per_flex ilegalmente grande.\"}]",
      "id": "CVE-2021-47116",
      "lastModified": "2025-01-07T17:31:32.993",
      "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}]}",
      "published": "2024-03-15T21:15:06.837",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-401\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47116\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-15T21:15:06.837\",\"lastModified\":\"2025-01-07T17:31:32.993\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\next4: fix memory leak in ext4_mb_init_backend on error path.\\n\\nFix a memory leak discovered by syzbot when a file system is corrupted\\nwith an illegally large s_log_groups_per_flex.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ext4: corrige la p\u00e9rdida de memoria en ext4_mb_init_backend en la ruta de error. Solucione una p\u00e9rdida de memoria descubierta por syzbot cuando un sistema de archivos est\u00e1 da\u00f1ado con un s_log_groups_per_flex ilegalmente grande.\"}],\"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:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.10.43\",\"matchCriteriaId\":\"EED29F26-07A5-4096-A687-701C4F98A541\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.10\",\"matchCriteriaId\":\"27384800-AB48-4C08-891E-34B66F5FC4AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA610E30-717C-4700-9F77-A3C9244F3BFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1ECD33F5-85BE-430B-8F86-8D7BD560311D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.910Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47116\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-04-05T17:36:29.410225Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:22.227Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"ext4: fix memory leak in ext4_mb_init_backend on error path.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"df61d3cff422433527d3bc388f69484f0781d226\", \"lessThan\": \"2050c6e5b161e5e25ce3c420fef58b24fa388a49\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f91436d55a279f045987e8b8c1385585dca54be9\", \"lessThan\": \"04fb2baa0b147f51db065a1b13a11954abe592d0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f91436d55a279f045987e8b8c1385585dca54be9\", \"lessThan\": \"a8867f4e3809050571c98de7a2d465aff5e4daf5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9e7af67e9521fb5cbb5b01aca22921c313c2e48e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5.10.27\", \"lessThan\": \"5.10.43\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.11.11\", \"lessThan\": \"5.12\", \"versionType\": \"semver\"}], \"programFiles\": [\"fs/ext4/mballoc.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.43\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/ext4/mballoc.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49\"}, {\"url\": \"https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0\"}, {\"url\": \"https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\next4: fix memory leak in ext4_mb_init_backend on error path.\\n\\nFix a memory leak discovered by syzbot when a file system is corrupted\\nwith an illegally large s_log_groups_per_flex.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.43\", \"versionStartIncluding\": \"5.10.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.10\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.11.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:19:20.674Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47116\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:19:20.674Z\", \"dateReserved\": \"2024-03-04T18:12:48.837Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-15T20:14:23.564Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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.