FKIE_CVE-2024-35808

Vulnerability from fkie_nvd - Published: 2024-05-17 14:15 - Updated: 2025-09-19 16:02
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: md/dm-raid: don't call md_reap_sync_thread() directly Currently md_reap_sync_thread() is called from raid_message() directly without holding 'reconfig_mutex', this is definitely unsafe because md_reap_sync_thread() can change many fields that is protected by 'reconfig_mutex'. However, hold 'reconfig_mutex' here is still problematic because this will cause deadlock, for example, commit 130443d60b1b ("md: refactor idle/frozen_sync_thread() to fix deadlock"). Fix this problem by using stop_sync_thread() to unregister sync_thread, like md/raid did.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/347dcdc15a1706f61aa545ae498ededdf31aeebcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e59b8d76ff511505eb0dd1478329f09e0f04669Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd32b27a66db8776d8b8e82ec7d7dde97a8693b0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/347dcdc15a1706f61aa545ae498ededdf31aeebcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9e59b8d76ff511505eb0dd1478329f09e0f04669Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cd32b27a66db8776d8b8e82ec7d7dde97a8693b0Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

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    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8B53C24B-2D46-4DC6-85C6-628182B5EA0E",
              "versionEndExcluding": "6.7.12",
              "versionStartIncluding": "3.10",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/dm-raid: don\u0027t call md_reap_sync_thread() directly\n\nCurrently md_reap_sync_thread() is called from raid_message() directly\nwithout holding \u0027reconfig_mutex\u0027, this is definitely unsafe because\nmd_reap_sync_thread() can change many fields that is protected by\n\u0027reconfig_mutex\u0027.\n\nHowever, hold \u0027reconfig_mutex\u0027 here is still problematic because this\nwill cause deadlock, for example, commit 130443d60b1b (\"md: refactor\nidle/frozen_sync_thread() to fix deadlock\").\n\nFix this problem by using stop_sync_thread() to unregister sync_thread,\nlike md/raid did."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: md/dm-raid: no llame a md_reap_sync_thread() directamente Actualmente, se llama a md_reap_sync_thread() desde raid_message() directamente sin mantener presionado \u0027reconfig_mutex\u0027, esto definitivamente no es seguro porque md_reap_sync_thread( ) puede cambiar muchos campos protegidos por \u0027reconfig_mutex\u0027. Sin embargo, mantener \u0027reconfig_mutex\u0027 aqu\u00ed sigue siendo problem\u00e1tico porque esto causar\u00e1 un punto muerto, por ejemplo, confirme 130443d60b1b (\"md: refactor idle/frozen_sync_thread() to fix deadlock\"). Solucione este problema usando stop_sync_thread() para cancelar el registro de sync_thread, como lo hizo md/raid."
    }
  ],
  "id": "CVE-2024-35808",
  "lastModified": "2025-09-19T16:02:27.983",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
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  "published": "2024-05-17T14:15:14.503",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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