cve-2024-26844
Vulnerability from cvelistv5
Published
2024-04-17 10:10
Modified
2024-11-05 09:16
Severity ?
Summary
block: Fix WARNING in _copy_from_iter
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26844",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-10T14:27:10.114301Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:48:24.553Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:13.656Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-map.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8fc80874103a",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "0f1bae071de9",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "cbaf9be337f7",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "13f3956eb568",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-map.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix WARNING in _copy_from_iter\n\nSyzkaller reports a warning in _copy_from_iter because an\niov_iter is supposedly used in the wrong direction. The reason\nis that syzcaller managed to generate a request with\na transfer direction of SG_DXFER_TO_FROM_DEV. This instructs\nthe kernel to copy user buffers into the kernel, read into\nthe copied buffers and then copy the data back to user space.\n\nThus the iovec is used in both directions.\n\nDetect this situation in the block layer and construct a new\niterator with the correct direction for the copy-in."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:16:49.648Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6"
        }
      ],
      "title": "block: Fix WARNING in _copy_from_iter",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26844",
    "datePublished": "2024-04-17T10:10:08.711Z",
    "dateReserved": "2024-02-19T14:20:24.182Z",
    "dateUpdated": "2024-11-05T09:16:49.648Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26844\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T10:15:10.093\",\"lastModified\":\"2024-04-17T12:48:07.510\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nblock: Fix WARNING in _copy_from_iter\\n\\nSyzkaller reports a warning in _copy_from_iter because an\\niov_iter is supposedly used in the wrong direction. The reason\\nis that syzcaller managed to generate a request with\\na transfer direction of SG_DXFER_TO_FROM_DEV. This instructs\\nthe kernel to copy user buffers into the kernel, read into\\nthe copied buffers and then copy the data back to user space.\\n\\nThus the iovec is used in both directions.\\n\\nDetect this situation in the block layer and construct a new\\niterator with the correct direction for the copy-in.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: Reparar ADVERTENCIA en _copy_from_iter Syzkaller informa una advertencia en _copy_from_iter porque supuestamente se usa un iov_iter en la direcci\u00f3n incorrecta. La raz\u00f3n es que syzcaller logr\u00f3 generar una solicitud con una direcci\u00f3n de transferencia de SG_DXFER_TO_FROM_DEV. Esto le indica al kernel que copie los buffers del usuario en el kernel, los lea en los buffers copiados y luego copie los datos nuevamente al espacio del usuario. Por tanto, el iovec se utiliza en ambas direcciones. Detecte esta situaci\u00f3n en la capa de bloque y construya un nuevo iterador con la direcci\u00f3n correcta para la copia.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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.