CVE-2023-52646 (GCVE-0-2023-52646)

Vulnerability from cvelistv5 – Published: 2024-04-26 12:19 – Updated: 2026-05-11 19:30
VLAI
Title
aio: fix mremap after fork null-deref
Summary
In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [jmoyer@redhat.com: fix 80 column issue]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < 808f1e4b5723ae4eda724d2ad6f6638905eefd95 (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < d8dca1bfe9adcae38b35add64977818c0c13dd22 (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < 4326d0080f7e84fba775da41d158f46cf9d3f1c2 (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < c261f798f7baa8080cf0214081d43d5f86bb073f (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < 178993157e8c50aef7f35d7d6d3b44bb428199e1 (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < af126acf01a12bdb04986fd26fc2eb3b40249e0d (git)
Affected: e4a0d3e720e7e508749c1439b5ba3aff56c92976 , < 81e9d6f8647650a7bead74c5f926e29970e834d1 (git)
Create a notification for this product.
Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 4.14.306 , ≤ 4.14.* (semver)
Unaffected: 4.19.273 , ≤ 4.19.* (semver)
Unaffected: 5.4.232 , ≤ 5.4.* (semver)
Unaffected: 5.10.169 , ≤ 5.10.* (semver)
Unaffected: 5.15.95 , ≤ 5.15.* (semver)
Unaffected: 6.1.13 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52646",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-17T14:11:42.942960Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-17T14:11:56.678Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:03:21.281Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/aio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "808f1e4b5723ae4eda724d2ad6f6638905eefd95",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "d8dca1bfe9adcae38b35add64977818c0c13dd22",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "4326d0080f7e84fba775da41d158f46cf9d3f1c2",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "c261f798f7baa8080cf0214081d43d5f86bb073f",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "178993157e8c50aef7f35d7d6d3b44bb428199e1",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "af126acf01a12bdb04986fd26fc2eb3b40249e0d",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            },
            {
              "lessThan": "81e9d6f8647650a7bead74c5f926e29970e834d1",
              "status": "affected",
              "version": "e4a0d3e720e7e508749c1439b5ba3aff56c92976",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/aio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.19"
            },
            {
              "lessThan": "3.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.306",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.273",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.232",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.169",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.306",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.273",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.232",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.169",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.95",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.13",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naio: fix mremap after fork null-deref\n\nCommit e4a0d3e720e7 (\"aio: Make it possible to remap aio ring\") introduced\na null-deref if mremap is called on an old aio mapping after fork as\nmm-\u003eioctx_table will be set to NULL.\n\n[jmoyer@redhat.com: fix 80 column issue]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:30:59.571Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22"
        },
        {
          "url": "https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2"
        },
        {
          "url": "https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f"
        },
        {
          "url": "https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1"
        },
        {
          "url": "https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1"
        }
      ],
      "title": "aio: fix mremap after fork null-deref",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52646",
    "datePublished": "2024-04-26T12:19:32.167Z",
    "dateReserved": "2024-03-06T09:52:12.094Z",
    "dateUpdated": "2026-05-11T19:30:59.571Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-52646",
      "date": "2026-07-22",
      "epss": "0.00236",
      "percentile": "0.14715"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\naio: fix mremap after fork null-deref\\n\\nCommit e4a0d3e720e7 (\\\"aio: Make it possible to remap aio ring\\\") introduced\\na null-deref if mremap is called on an old aio mapping after fork as\\nmm-\u003eioctx_table will be set to NULL.\\n\\n[jmoyer@redhat.com: fix 80 column issue]\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: aio: corrige mremap despu\\u00e9s de la bifurcaci\\u00f3n null-deref Commit e4a0d3e720e7 (\\\"aio: Make it posible reasignar el anillo aio\\\") introdujo un null-deref si se llama a mremap en un mapeo aio antiguo despu\\u00e9s de la bifurcaci\\u00f3n como mm-\u0026gt;ioctx_table se establecer\\u00e1 en NULL. [jmoyer@redhat.com: soluciona el problema de 80 columnas]\"}]",
      "id": "CVE-2023-52646",
      "lastModified": "2024-11-21T08:40:16.687",
      "published": "2024-04-26T13:15:46.453",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52646\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-26T13:15:46.453\",\"lastModified\":\"2026-06-17T06:43:15.010\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\naio: fix mremap after fork null-deref\\n\\nCommit e4a0d3e720e7 (\\\"aio: Make it possible to remap aio ring\\\") introduced\\na null-deref if mremap is called on an old aio mapping after fork as\\nmm-\u003eioctx_table will be set to NULL.\\n\\n[jmoyer@redhat.com: fix 80 column issue]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: aio: corrige mremap despu\u00e9s de la bifurcaci\u00f3n null-deref Commit e4a0d3e720e7 (\\\"aio: Make it posible reasignar el anillo aio\\\") introdujo un null-deref si se llama a mremap en un mapeo aio antiguo despu\u00e9s de la bifurcaci\u00f3n como mm-\u0026gt;ioctx_table se establecer\u00e1 en NULL. [jmoyer@redhat.com: soluciona el problema de 80 columnas]\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/aio.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"808f1e4b5723ae4eda724d2ad6f6638905eefd95\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"d8dca1bfe9adcae38b35add64977818c0c13dd22\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"4326d0080f7e84fba775da41d158f46cf9d3f1c2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"c261f798f7baa8080cf0214081d43d5f86bb073f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"178993157e8c50aef7f35d7d6d3b44bb428199e1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"af126acf01a12bdb04986fd26fc2eb3b40249e0d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e4a0d3e720e7e508749c1439b5ba3aff56c92976\",\"lessThan\":\"81e9d6f8647650a7bead74c5f926e29970e834d1\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/aio.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.19\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.19\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.306\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.273\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.232\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.169\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.95\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.13\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-07-17T14:11:42.942960Z\",\"id\":\"CVE-2023-52646\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.19\",\"versionEndExcluding\":\"4.14.306\",\"matchCriteriaId\":\"5265EE87-658B-4C39-8539-7587327F4439\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.273\",\"matchCriteriaId\":\"FC86F278-A337-4A8A-A7BB-758898345802\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.232\",\"matchCriteriaId\":\"9C6E0696-3702-4B0C-A102-2753BDC8C3D3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.169\",\"matchCriteriaId\":\"D8E6784B-A00F-47F0-882B-7209E1F374B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.95\",\"matchCriteriaId\":\"8508F80E-8588-4976-A2BA-7A2D85018C4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.13\",\"matchCriteriaId\":\"CE354BE6-0C0F-47EB-AD8A-1433F041AC20\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF501633-2F44-4913-A8EE-B021929F49F6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"2BDA597B-CAC1-4DF0-86F0-42E142C654E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"725C78C9-12CE-406F-ABE8-0813A01D66E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A127C155-689C-4F67-B146-44A57F4BFD85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"D34127CC-68F5-4703-A5F6-5006F803E4AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AB8D555-648E-4F2F-98BD-3E7F45BD12A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"C64BDD9D-C663-4E75-AE06-356EDC392B82\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc8:*:*:*:*:*:*\",\"matchCriteriaId\":\"26544390-88E4-41CA-98BF-7BB1E9D4E243\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:56:24+00:00",
      "cve": "CVE-2023-52646",
      "id": "CVE-2023-52646",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: aio: fix mremap after fork null-deref",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52646.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-05-27T04:09:56Z",
      "cve": "CVE-2023-52646",
      "id": "CVE-2023-52646",
      "initial_release_date": "2024-04-27T03:05:43Z",
      "product_status:known_affected": "531",
      "product_status:known_not_affected": "84",
      "product_status:recommended": "322",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52646",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52646.json",
      "version": "62"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:03:21.281Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52646\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-17T14:11:42.942960Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-17T14:11:53.151Z\"}}], \"cna\": {\"title\": \"aio: fix mremap after fork null-deref\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"808f1e4b5723ae4eda724d2ad6f6638905eefd95\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"d8dca1bfe9adcae38b35add64977818c0c13dd22\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"4326d0080f7e84fba775da41d158f46cf9d3f1c2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"c261f798f7baa8080cf0214081d43d5f86bb073f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"178993157e8c50aef7f35d7d6d3b44bb428199e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"af126acf01a12bdb04986fd26fc2eb3b40249e0d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e4a0d3e720e7e508749c1439b5ba3aff56c92976\", \"lessThan\": \"81e9d6f8647650a7bead74c5f926e29970e834d1\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/aio.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.306\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.273\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.232\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.169\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.95\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/aio.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95\"}, {\"url\": \"https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22\"}, {\"url\": \"https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2\"}, {\"url\": \"https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f\"}, {\"url\": \"https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1\"}, {\"url\": \"https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d\"}, {\"url\": \"https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\naio: fix mremap after fork null-deref\\n\\nCommit e4a0d3e720e7 (\\\"aio: Make it possible to remap aio ring\\\") introduced\\na null-deref if mremap is called on an old aio mapping after fork as\\nmm-\u003eioctx_table will be set to NULL.\\n\\n[jmoyer@redhat.com: fix 80 column issue]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.306\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.273\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.232\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.169\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.95\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.13\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"3.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:40:47.360Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52646\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:40:47.360Z\", \"dateReserved\": \"2024-03-06T09:52:12.094Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-26T12:19:32.167Z\", \"assignerShortName\": \"Linux\"}",
      "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.