cve-2024-42231
Vulnerability from cvelistv5
Published
2024-07-30 07:47
Modified
2024-12-19 09:14
Severity ?
Summary
btrfs: zoned: fix calc_available_free_space() for zoned mode
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:54:32.610Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-42231",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:14:20.817500Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:32.740Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/space-info.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8548903b1999bba02a2b894ad750ab8eb1f40307",
              "status": "affected",
              "version": "cb6cbab79055ca207ad88bc54226b48ececdcef0",
              "versionType": "git"
            },
            {
              "lessThan": "64d2c847ba380e07b9072d65a50aa6469d2aa43f",
              "status": "affected",
              "version": "cb6cbab79055ca207ad88bc54226b48ececdcef0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/space-info.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: fix calc_available_free_space() for zoned mode\n\ncalc_available_free_space() returns the total size of metadata (or\nsystem) block groups, which can be allocated from unallocated disk\nspace. The logic is wrong on zoned mode in two places.\n\nFirst, the calculation of data_chunk_size is wrong. We always allocate\none zone as one chunk, and no partial allocation of a zone. So, we\nshould use zone_size (= data_sinfo-\u003echunk_size) as it is.\n\nSecond, the result \"avail\" may not be zone aligned. Since we always\nallocate one zone as one chunk on zoned mode, returning non-zone size\naligned bytes will result in less pressure on the async metadata reclaim\nprocess.\n\nThis is serious for the nearly full state with a large zone size device.\nAllowing over-commit too much will result in less async reclaim work and\nend up in ENOSPC. We can align down to the zone size to avoid that."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:14:29.486Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307"
        },
        {
          "url": "https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f"
        }
      ],
      "title": "btrfs: zoned: fix calc_available_free_space() for zoned mode",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-42231",
    "datePublished": "2024-07-30T07:47:11.409Z",
    "dateReserved": "2024-07-30T07:40:12.251Z",
    "dateUpdated": "2024-12-19T09:14:29.486Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-42231\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-30T08:15:08.307\",\"lastModified\":\"2024-07-30T19:30:52.427\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: zoned: fix calc_available_free_space() for zoned mode\\n\\ncalc_available_free_space() returns the total size of metadata (or\\nsystem) block groups, which can be allocated from unallocated disk\\nspace. The logic is wrong on zoned mode in two places.\\n\\nFirst, the calculation of data_chunk_size is wrong. We always allocate\\none zone as one chunk, and no partial allocation of a zone. So, we\\nshould use zone_size (= data_sinfo-\u003echunk_size) as it is.\\n\\nSecond, the result \\\"avail\\\" may not be zone aligned. Since we always\\nallocate one zone as one chunk on zoned mode, returning non-zone size\\naligned bytes will result in less pressure on the async metadata reclaim\\nprocess.\\n\\nThis is serious for the nearly full state with a large zone size device.\\nAllowing over-commit too much will result in less async reclaim work and\\nend up in ENOSPC. We can align down to the zone size to avoid that.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs:zoned: fix calc_available_free_space() para el modo zonal calc_available_free_space() devuelve el tama\u00f1o total de los grupos de bloques de metadatos (o sistema), que se pueden asignar desde espacio en disco no asignado. La l\u00f3gica es incorrecta en el modo por zonas en dos lugares. Primero, el c\u00e1lculo de data_chunk_size es incorrecto. Siempre asignamos una zona como un fragmento y no asignamos una zona parcial. Entonces, deber\u00edamos usar Zone_size (= data_sinfo-\u0026gt;chunk_size) tal como est\u00e1. En segundo lugar, es posible que el resultado \\\"avail\\\" no est\u00e9 alineado con la zona. Dado que siempre asignamos una zona como un fragmento en el modo de zona, devolver bytes alineados sin tama\u00f1o de zona generar\u00e1 menos presi\u00f3n sobre el proceso de recuperaci\u00f3n de metadatos as\u00edncronos. Esto es grave para el estado casi lleno con un dispositivo de gran tama\u00f1o de zona. Permitir un compromiso excesivo dar\u00e1 como resultado menos trabajo de recuperaci\u00f3n as\u00edncrona y terminar\u00e1 en ENOSPC. Podemos alinearnos con el tama\u00f1o de la zona para evitar eso.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-682\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.9\",\"matchCriteriaId\":\"ADCC1407-0CB3-4C8F-B4C5-07F682CD7085\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2EBB4392-5FA6-4DA9-9772-8F9C750109FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"331C2F14-12C7-45D5-893D-8C52EE38EA10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3173713D-909A-4DD3-9DD4-1E171EB057EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"79F18AFA-40F7-43F0-BA30-7BDB65F918B9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"BD973AA4-A789-49BD-8D57-B2846935D3C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"8F3E9E0C-AC3E-4967-AF80-6483E8AB0078\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • 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.