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

CVE-2022-3646 (GCVE-0-2022-3646)

Vulnerability from cvelistv5 – Published: 2022-10-21 00:00 – Updated: 2025-04-15 13:24
VLAI
Title
Linux Kernel BPF segment.c nilfs_attach_log_writer memory leak
Summary
A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability.
Severity
3.1 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-14 17:07 UTC
CWE
  • CWE-404 - Denial of Service -> CWE-401 Memory Leak
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Kernel Affected: n/a
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T01:14:03.291Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://vuldb.com/?id.211961"
          },
          {
            "name": "[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
          },
          {
            "name": "[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-3646",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-14T17:07:39.915979Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-15T13:24:51.206Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kernel",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "CWE-404 Denial of Service -\u003e CWE-401 Memory Leak",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-24T00:00:00.000Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306"
        },
        {
          "url": "https://vuldb.com/?id.211961"
        },
        {
          "name": "[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
        },
        {
          "name": "[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html"
        }
      ],
      "title": "Linux Kernel BPF segment.c nilfs_attach_log_writer memory leak",
      "x_generator": "vuldb.com"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2022-3646",
    "datePublished": "2022-10-21T00:00:00.000Z",
    "dateReserved": "2022-10-21T00:00:00.000Z",
    "dateUpdated": "2025-04-15T13:24:51.206Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-3646",
      "date": "2026-09-17",
      "epss": "0.00883",
      "percentile": "0.57479"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-3646\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2022-10-21T18:15:10.103\",\"lastModified\":\"2026-06-17T04:59:56.583\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability.\"},{\"lang\":\"es\",\"value\":\"Se ha encontrado una vulnerabilidad, clasificada como problem\u00e1tica, en el Kernel de Linux. Este problema afecta a la funci\u00f3n nilfs_attach_log_writer del archivo fs/nilfs2/segment.c del componente BPF. La manipulaci\u00f3n conlleva a una p\u00e9rdida de memoria. El ataque puede ser iniciado de forma remota. Es recomendado aplicar un parche para corregir este problema. Ha sido asignado el identificador VDB-211961 a esta vulnerabilidad\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Kernel\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.1,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.6,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-04-14T17:07:39.915979Z\",\"id\":\"CVE-2022-3646\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"703AF700-7A70-47E2-BC3A-7FD03B3CA9C1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Mailing List\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.211961\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.211961\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-26T15:01:23+00:00",
      "cve": "CVE-2022-3646",
      "id": "CVE-2022-3646",
      "initial_release_date": "2022-10-07T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nilfs2: memory leak in nilfs_attach_log_writer in fs/nilfs2/segment.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-3646.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Linux Kernel BPF segment.c nilfs_attach_log_writer memory leak\", \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2022-12-24T00:00:00.000Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability.\"}], \"affected\": [{\"vendor\": \"Linux\", \"product\": \"Kernel\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}], \"references\": [{\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306\"}, {\"url\": \"https://vuldb.com/?id.211961\"}, {\"name\": \"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update\", \"tags\": [\"mailing-list\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html\"}, {\"name\": \"[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update\", \"tags\": [\"mailing-list\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\", \"baseScore\": 3.1, \"baseSeverity\": \"LOW\"}}], \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"lang\": \"en\", \"description\": \"CWE-404 Denial of Service -\u003e CWE-401 Memory Leak\", \"cweId\": \"CWE-404\"}]}], \"x_generator\": \"vuldb.com\"}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T01:14:03.291Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://vuldb.com/?id.211961\", \"tags\": [\"x_transferred\"]}, {\"name\": \"[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update\", \"tags\": [\"mailing-list\", \"x_transferred\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html\"}, {\"name\": \"[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update\", \"tags\": [\"mailing-list\", \"x_transferred\"], \"url\": \"https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-3646\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-14T17:07:39.915979Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-14T17:07:42.609Z\"}}]}",
      "cveMetadata": "{\"state\": \"PUBLISHED\", \"cveId\": \"CVE-2022-3646\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"assignerShortName\": \"VulDB\", \"dateUpdated\": \"2025-04-15T13:24:51.206Z\", \"dateReserved\": \"2022-10-21T00:00:00.000Z\", \"datePublished\": \"2022-10-21T00:00:00.000Z\"}",
      "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.