Vulnerability-Lookup

GHSA-6FMP-GCQX-7933

Vulnerability from github – Published: 2025-03-14 00:30 – Updated: 2025-03-14 00:30

Details

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

mm/huge_memory: Fix xarray node memory leak

If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem() then interprets as "Please allocate more memory", not as "Please free any unnecessary memory" (which was the intended outcome). It's confusing to use xas_nomem() to free memory in this context, so call xas_destroy() instead.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49334"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: Fix xarray node memory leak\n\nIf xas_split_alloc() fails to allocate the necessary nodes to complete the\nxarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()\nthen interprets as \"Please allocate more memory\", not as \"Please free\nany unnecessary memory\" (which was the intended outcome).  It\u0027s confusing\nto use xas_nomem() to free memory in this context, so call xas_destroy()\ninstead.",
  "id": "GHSA-6fmp-gcqx-7933",
  "modified": "2025-03-14T00:30:51Z",
  "published": "2025-03-14T00:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49334"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69a37a8ba1b408a1c7616494aa7018e4b3844cbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95c8181b4947e000f3b9b8e5918d899fce77b93d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0c84962e297927ba57fd6ddc2bb000c9d149655"
    }
  ],
  "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-2022-49334 (GCVE-0-2022-49334)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57

Title

mm/huge_memory: Fix xarray node memory leak

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: Fix xarray node memory leak If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem() then interprets as "Please allocate more memory", not as "Please free any unnecessary memory" (which was the intended outcome). It's confusing to use xas_nomem() to free memory in this context, so call xas_destroy() instead.

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 19:43 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/c0c84962e297927ba…
https://git.kernel.org/stable/c/95c8181b4947e000f…
https://git.kernel.org/stable/c/69a37a8ba1b408a1c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3 , < c0c84962e297927ba57fd6ddc2bb000c9d149655 (git) Affected: 6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3 , < 95c8181b4947e000f3b9b8e5918d899fce77b93d (git) Affected: 6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3 , < 69a37a8ba1b408a1c7616494aa7018e4b3844cbe (git)
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 5.17.15 , ≤ 5.17.* (semver) Unaffected: 5.18.4 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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{
  "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",
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            }
          },
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              "content": {
                "id": "CVE-2022-49334",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:43:11.577136Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
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            "descriptions": [
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                "cweId": "CWE-401",
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        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:46:55.349Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      }
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    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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            "lib/xarray.c",
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        }
      ],
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        "dateUpdated": "2026-05-11T18:57:41.304Z",
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      "title": "mm/huge_memory: Fix xarray node memory leak",
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    "datePublished": "2025-02-26T02:10:52.678Z",
    "dateReserved": "2025-02-26T02:08:31.539Z",
    "dateUpdated": "2026-05-11T18:57:41.304Z",
    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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