ghsa-fvxf-3hr7-h5gc
Vulnerability from github
Published
2024-02-27 21:31
Modified
2024-04-10 21:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

md/raid1: properly indicate failure when ending a failed write request

This patch addresses a data corruption bug in raid1 arrays using bitmaps. Without this fix, the bitmap bits for the failed I/O end up being cleared.

Since we are in the failure leg of raid1_end_write_request, the request either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46950"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-27T19:04:06Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: properly indicate failure when ending a failed write request\n\nThis patch addresses a data corruption bug in raid1 arrays using bitmaps.\nWithout this fix, the bitmap bits for the failed I/O end up being cleared.\n\nSince we are in the failure leg of raid1_end_write_request, the request\neither needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).",
  "id": "GHSA-fvxf-3hr7-h5gc",
  "modified": "2024-04-10T21:30:29Z",
  "published": "2024-02-27T21:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46950"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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