github - ghsa-7x3v-348q-cc5h

ghsa-7x3v-348q-cc5h

Vulnerability from github

Published

2024-10-29 03:31

Modified

2024-10-30 18:30

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50081"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-29T01:15:05Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-7x3v-348q-cc5h",
  "modified": "2024-10-30T18:30:48Z",
  "published": "2024-10-29T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50081"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-50081

Vulnerability from cvelistv5

Published

2024-10-29 00:50

Modified

2024-12-19 09:32

Severity ?

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

▼	URL	Tags
	https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87
	https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95

Impacted products

Vendor

Product

Version

▼

Linux

Version: 7b815817aa58d2e2101feb2fcf64c60cae0b2695
Version: 7b815817aa58d2e2101feb2fcf64c60cae0b2695

Linux

Version: 6.10

Show details on NVD website

JSON

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{
  "containers": {
    "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": "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"
            }
          ]
        }
      ],
      "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": "2024-12-19T09:32:38.538Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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-5f407fcff5a0"
      }
    }
  },
  "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": "2024-12-19T09:32:38.538Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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