CVE-2024-50081 (GCVE-0-2024-50081)

Vulnerability from cvelistv5 – Published: 2024-10-29 00:50 – Updated: 2026-05-11 20:45
VLAI
Title
blk-mq: setup queue ->tag_set before initializing hctx
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:23 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ff2d6ef107b1b1ec6b469073b4dda0dc744e343c , < 73d964ce4bc8b4de88a7c2e40df494f0d5cd8950 (git)
Affected: dbd0829d2458d7292b82bfc9d02cce23935b198f , < 25466e5b4bb11a8415ce8d0be89ab77135f7e444 (git)
Affected: 7b815817aa58d2e2101feb2fcf64c60cae0b2695 , < d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87 (git)
Affected: 7b815817aa58d2e2101feb2fcf64c60cae0b2695 , < c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95 (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.11.5 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50081",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50081.json",
      "version": "92"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-50081",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T20:23:15.472621Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T15:13:43.243Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "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"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.5",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "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."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-11T16:29:05.931Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950"
            },
            {
              "url": "https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444"
            },
            {
              "url": "https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87"
            },
            {
              "url": "https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95"
            }
          ],
          "title": "blk-mq: setup queue -\u003etag_set before initializing hctx",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-50081",
        "datePublished": "2024-10-29T00:50:23.608Z",
        "dateReserved": "2024-10-21T19:36:19.941Z",
        "dateUpdated": "2026-01-11T16:29:05.931Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.