github - ghsa-6j6x-q3pw-5hr9

ghsa-6j6x-q3pw-5hr9

Vulnerability from github

Published

2024-04-17 12:32

Modified

2024-04-17 12:32

Details

In the Linux kernel, the following vulnerability has been resolved:

block: Fix WARNING in _copy_from_iter

Syzkaller reports a warning in _copy_from_iter because an iov_iter is supposedly used in the wrong direction. The reason is that syzcaller managed to generate a request with a transfer direction of SG_DXFER_TO_FROM_DEV. This instructs the kernel to copy user buffers into the kernel, read into the copied buffers and then copy the data back to user space.

Thus the iovec is used in both directions.

Detect this situation in the block layer and construct a new iterator with the correct direction for the copy-in.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-26844"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T10:15:10Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-6j6x-q3pw-5hr9",
  "modified": "2024-04-17T12:32:03Z",
  "published": "2024-04-17T12:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26844"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-26844

Vulnerability from cvelistv5

Published

2024-04-17 10:10

Modified

2024-08-02 00:14

Severity

Summary

block: Fix WARNING in _copy_from_iter

References

URL	Tags
https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b
https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956
https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b
https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6

Impacted products

Vendor	Product
Linux	Linux
Linux	Linux

Show details on NVD website

{
  "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": "custom"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.19",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.7",
              "versionType": "custom"
            },
            {
              "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": "2024-05-29T05:23:43.215Z",
        "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-a5840b7849dd"
      }
    }
  },
  "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": "2024-08-02T00:14:13.656Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Log in or create an account to share your comment.

Tags

Taxonomy of the tags.