github - ghsa-c2p4-prc5-v3mc

ghsa-c2p4-prc5-v3mc

Vulnerability from github

Published

2025-05-01 15:31

Modified

2025-05-01 15:31

Details

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

cxl/region: Fix cxl_region leak, cleanup targets at region delete

When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time.

Otherwise that region object will leak as userspace has lost the ability to detach targets once region sysfs is torn down.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49893"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:14Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix cxl_region leak, cleanup targets at region delete\n\nWhen a region is deleted any targets that have been previously assigned\nto that region hold references to it. Trigger those references to\ndrop by detaching all targets at unregister_region() time.\n\nOtherwise that region object will leak as userspace has lost the ability\nto detach targets once region sysfs is torn down.",
  "id": "GHSA-c2p4-prc5-v3mc",
  "modified": "2025-05-01T15:31:51Z",
  "published": "2025-05-01T15:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49893"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d9e734018d70cecf79e2e4c6082167160a0f13f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45d9fb4b758b9d602ee7776eb6754b0349946aad"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2022-49893

Vulnerability from cvelistv5

Published

2025-05-01 14:10

Modified

2025-05-04 08:47

Severity ?

Summary

cxl/region: Fix cxl_region leak, cleanup targets at region delete

References

▼	URL	Tags
	https://git.kernel.org/stable/c/45d9fb4b758b9d602ee7776eb6754b0349946aad
	https://git.kernel.org/stable/c/0d9e734018d70cecf79e2e4c6082167160a0f13f

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/cxl/core/region.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "45d9fb4b758b9d602ee7776eb6754b0349946aad",
              "status": "affected",
              "version": "b9686e8c8e39d4072081ef078c04915ee51c8af4",
              "versionType": "git"
            },
            {
              "lessThan": "0d9e734018d70cecf79e2e4c6082167160a0f13f",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/cxl/core/region.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.8",
              "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": "6.0.8",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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        }
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix cxl_region leak, cleanup targets at region delete\n\nWhen a region is deleted any targets that have been previously assigned\nto that region hold references to it. Trigger those references to\ndrop by detaching all targets at unregister_region() time.\n\nOtherwise that region object will leak as userspace has lost the ability\nto detach targets once region sysfs is torn down."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:47:56.937Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/45d9fb4b758b9d602ee7776eb6754b0349946aad"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d9e734018d70cecf79e2e4c6082167160a0f13f"
        }
      ],
      "title": "cxl/region: Fix cxl_region leak, cleanup targets at region delete",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49893",
    "datePublished": "2025-05-01T14:10:36.503Z",
    "dateReserved": "2025-05-01T14:05:17.243Z",
    "dateUpdated": "2025-05-04T08:47:56.937Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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