FKIE_CVE-2024-50081

Vulnerability from fkie_nvd - Published: 2024-10-29 01:15 - Updated: 2026-06-17 08:03
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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: blk-mq: setup queue ->tag_set before initializing hctx Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx") needs to check queue mapping via tag set in hctx's cpuhp handler. However, q->tag_set may not be setup yet when the cpuhp handler is enabled, then kernel oops is triggered. Fix the issue by setup queue tag_set before initializing hctx.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-mq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "73d964ce4bc8b4de88a7c2e40df494f0d5cd8950",
              "status": "affected",
              "version": "ff2d6ef107b1b1ec6b469073b4dda0dc744e343c",
              "versionType": "git"
            },
            {
              "lessThan": "25466e5b4bb11a8415ce8d0be89ab77135f7e444",
              "status": "affected",
              "version": "dbd0829d2458d7292b82bfc9d02cce23935b198f",
              "versionType": "git"
            },
            {
              "lessThan": "d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87",
              "status": "affected",
              "version": "7b815817aa58d2e2101feb2fcf64c60cae0b2695",
              "versionType": "git"
            },
            {
              "lessThan": "c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95",
              "status": "affected",
              "version": "7b815817aa58d2e2101feb2fcf64c60cae0b2695",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-mq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E1D573E2-61FD-4C3B-B3BD-5FBEFD6391F0",
              "versionEndExcluding": "6.11.5",
              "versionStartIncluding": "6.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: setup queue -\u003etag_set before initializing hctx\n\nCommit 7b815817aa58 (\"blk-mq: add helper for checking if one CPU is mapped to specified hctx\")\nneeds to check queue mapping via tag set in hctx\u0027s cpuhp handler.\n\nHowever, q-\u003etag_set may not be setup yet when the cpuhp handler is\nenabled, then kernel oops is triggered.\n\nFix the issue by setup queue tag_set before initializing hctx."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blk-mq: configurar queue -\u0026gt;tag_set antes de inicializar hctx el commit 7b815817aa58 (\"blk-mq: agregar asistente para verificar si una CPU est\u00e1 asignada a hctx especificado\") necesita verificar la asignaci\u00f3n de cola a trav\u00e9s del conjunto de etiquetas en el controlador cpuhp de hctx. Sin embargo, es posible que q-\u0026gt;tag_set a\u00fan no est\u00e9 configurado cuando el controlador cpuhp est\u00e1 habilitado, luego se activa el error del kernel. Solucione el problema configurando queue tag_set antes de inicializar hctx."
    }
  ],
  "id": "CVE-2024-50081",
  "lastModified": "2026-06-17T08:03:32.090",
  "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"
      },
      {
        "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-50081",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T20:23:15.472621Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-29T01:15:05.073",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.