fkie_cve-2024-41080
Vulnerability from fkie_nvd
Published
2024-07-29 15:15
Modified
2025-11-03 22:17
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: io_uring: fix possible deadlock in io_register_iowq_max_workers() The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6ee ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation. To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call. This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73254a297c2dd094abec7c9efee32455ae875bdfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/950ac86cff338ab56e2eaf611f4936ee34893b63
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97ed7ff58de66c544692b3c2b988f3f594348de0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b17397a0a5c56e111f61cb5b77d162664dc00de9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b571a367502c7ef94c688ef9c7f7d69a2ce3bccaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fdacd09f2ddf7a00787291f08ee48c0421e5b709
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73254a297c2dd094abec7c9efee32455ae875bdfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b571a367502c7ef94c688ef9c7f7d69a2ce3bccaPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

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    {
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E5165B93-C9B7-47E9-8137-35D791A1B1D1",
              "versionEndExcluding": "6.9.11",
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix possible deadlock in io_register_iowq_max_workers()\n\nThe io_register_iowq_max_workers() function calls io_put_sq_data(),\nwhich acquires the sqd-\u003elock without releasing the uring_lock.\nSimilar to the commit 009ad9f0c6ee (\"io_uring: drop ctx-\u003euring_lock\nbefore acquiring sqd-\u003elock\"), this can lead to a potential deadlock\nsituation.\n\nTo resolve this issue, the uring_lock is released before calling\nio_put_sq_data(), and then it is re-acquired after the function call.\n\nThis change ensures that the locks are acquired in the correct\norder, preventing the possibility of a deadlock."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: io_uring: soluciona posible punto muerto en io_register_iowq_max_workers() La funci\u00f3n io_register_iowq_max_workers() llama a io_put_sq_data(), que adquiere el sqd-\u0026gt;lock sin liberar uring_lock. De manera similar a la confirmaci\u00f3n 009ad9f0c6ee (\"io_uring: drop ctx-\u0026gt;uring_lock before adquiring sqd-\u0026gt;lock\"), esto puede conducir a una posible situaci\u00f3n de punto muerto. Para resolver este problema, uring_lock se libera antes de llamar a io_put_sq_data() y luego se vuelve a adquirir despu\u00e9s de la llamada a la funci\u00f3n. Este cambio garantiza que los bloqueos se adquieran en el orden correcto, evitando la posibilidad de un punto muerto."
    }
  ],
  "id": "CVE-2024-41080",
  "lastModified": "2025-11-03T22:17:31.960",
  "metrics": {
    "cvssMetricV31": [
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        "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": "2024-07-29T15:15:15.523",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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