github - ghsa-ff3g-qxwq-qv29

GHSA-FF3G-QXWQ-QV29

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-07 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

blk-cgroup: properly pin the parent in blkcg_css_online

blkcg_css_online is supposed to pin the blkcg of the parent, but 397c9f46ee4d refactored things and along the way, changed it to pin the css instead. This results in extra pins, and we end up leaking blkcgs and cgroups.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-49786"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:01Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: properly pin the parent in blkcg_css_online\n\nblkcg_css_online is supposed to pin the blkcg of the parent, but\n397c9f46ee4d refactored things and along the way, changed it to pin the\ncss instead.  This results in extra pins, and we end up leaking blkcgs\nand cgroups.",
  "id": "GHSA-ff3g-qxwq-qv29",
  "modified": "2025-11-07T18:30:26Z",
  "published": "2025-05-01T15:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49786"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d118247e404d6338f7b90636a3c6b95a387ed163"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe"
    }
  ],
  "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-2022-49786 (GCVE-0-2022-49786)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2025-05-04 08:45

Summary

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: properly pin the parent in blkcg_css_online blkcg_css_online is supposed to pin the blkcg of the parent, but 397c9f46ee4d refactored things and along the way, changed it to pin the css instead. This results in extra pins, and we end up leaking blkcgs and cgroups.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d118247e404d6338f…
	https://git.kernel.org/stable/c/d7dbd43f4a828fa1d…

Impacted products

Vendor

Product

Version

Linux

Affected: 397c9f46ee4d99024c64954b007c1b5762d01cb4 , < d118247e404d6338f7b90636a3c6b95a387ed163 (git)
Affected: 397c9f46ee4d99024c64954b007c1b5762d01cb4 , < d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe (git)

Linux

Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.0.10 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-cgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d118247e404d6338f7b90636a3c6b95a387ed163",
              "status": "affected",
              "version": "397c9f46ee4d99024c64954b007c1b5762d01cb4",
              "versionType": "git"
            },
            {
              "lessThan": "d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe",
              "status": "affected",
              "version": "397c9f46ee4d99024c64954b007c1b5762d01cb4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-cgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.10",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: properly pin the parent in blkcg_css_online\n\nblkcg_css_online is supposed to pin the blkcg of the parent, but\n397c9f46ee4d refactored things and along the way, changed it to pin the\ncss instead.  This results in extra pins, and we end up leaking blkcgs\nand cgroups."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:45:20.699Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d118247e404d6338f7b90636a3c6b95a387ed163"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe"
        }
      ],
      "title": "blk-cgroup: properly pin the parent in blkcg_css_online",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49786",
    "datePublished": "2025-05-01T14:09:18.954Z",
    "dateReserved": "2025-05-01T14:05:17.223Z",
    "dateUpdated": "2025-05-04T08:45:20.699Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-FF3G-QXWQ-QV29

CVE-2022-49786 (GCVE-0-2022-49786)

Tags

Sightings

Nomenclature