ghsa-qpxp-m569-qp25
Vulnerability from github
Published
2024-06-20 12:31
Modified
2024-07-03 18:46
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details

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

block: Fix wrong offset in bio_truncate()

bio_truncate() clears the buffer outside of last block of bdev, however current bio_truncate() is using the wrong offset of page. So it can return the uninitialized data.

This happened when both of truncated/corrupted FS and userspace (via bdev) are trying to read the last of bdev.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48747"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-20T12:15:12Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev.",
  "id": "GHSA-qpxp-m569-qp25",
  "modified": "2024-07-03T18:46:09Z",
  "published": "2024-06-20T12:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48747"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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