fkie_cve-2024-45023
Vulnerability from fkie_nvd
Published
2024-09-11 16:15
Modified
2024-09-13 16:30
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid1: Fix data corruption for degraded array with slow disk read_balance() will avoid reading from slow disks as much as possible, however, if valid data only lands in slow disks, and a new normal disk is still in recovery, unrecovered data can be read: raid1_read_request read_balance raid1_should_read_first -> return false choose_best_rdev -> normal disk is not recovered, return -1 choose_bb_rdev -> missing the checking of recovery, return the normal disk -> read unrecovered data Root cause is that the checking of recovery is missing in choose_bb_rdev(). Hence add such checking to fix the problem. Also fix similar problem in choose_slow_rdev().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2febf5fdbf5d9a52ddc3e986971c8609b1582d67Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c916ca35308d3187c9928664f9be249b22a3a701Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E94ACAFB-7FD4-4D6C-B1EF-5ACFEF7D85D6",
              "versionEndExcluding": "6.10.7",
              "versionStartIncluding": "6.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551",
              "vulnerable": true
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              "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: Fix data corruption for degraded array with slow disk\n\nread_balance() will avoid reading from slow disks as much as possible,\nhowever, if valid data only lands in slow disks, and a new normal disk\nis still in recovery, unrecovered data can be read:\n\nraid1_read_request\n read_balance\n  raid1_should_read_first\n  -\u003e return false\n  choose_best_rdev\n  -\u003e normal disk is not recovered, return -1\n  choose_bb_rdev\n  -\u003e missing the checking of recovery, return the normal disk\n -\u003e read unrecovered data\n\nRoot cause is that the checking of recovery is missing in\nchoose_bb_rdev(). Hence add such checking to fix the problem.\n\nAlso fix similar problem in choose_slow_rdev()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: md/raid1: Reparar la corrupci\u00f3n de datos para la matriz degradada con disco lento read_balance() evitar\u00e1 la lectura de discos lentos tanto como sea posible, sin embargo, si los datos v\u00e1lidos solo llegan a discos lentos, y un nuevo disco normal a\u00fan est\u00e1 en recuperaci\u00f3n, se pueden leer los datos no recuperados: raid1_read_request read_balance raid1_should_read_first -\u0026gt; return false choose_best_rdev -\u0026gt; no se recupera el disco normal, devuelve -1 choose_bb_rdev -\u0026gt; falta la comprobaci\u00f3n de recuperaci\u00f3n, devuelve el disco normal -\u0026gt; leer datos no recuperados La causa ra\u00edz es que falta la comprobaci\u00f3n de recuperaci\u00f3n en choose_bb_rdev(). Por lo tanto, agregue dicha comprobaci\u00f3n para solucionar el problema. Tambi\u00e9n solucione un problema similar en choose_slow_rdev()."
    }
  ],
  "id": "CVE-2024-45023",
  "lastModified": "2024-09-13T16:30:30.427",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-09-11T16:15:07.230",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2febf5fdbf5d9a52ddc3e986971c8609b1582d67"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c916ca35308d3187c9928664f9be249b22a3a701"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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