Vulnerability-Lookup

GHSA-FCV5-2RGW-V385

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

find_vm_area() can return NULL if the given address is not a valid vmalloc area. Check the return value before dereferencing it to avoid a kernel crash.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-74327"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmalloc: fix NULL pointer dereference in is_vm_area_hugepages()\n\nfind_vm_area() can return NULL if the given address is not a valid vmalloc\narea.  Check the return value before dereferencing it to avoid a kernel\ncrash.",
  "id": "GHSA-fcv5-2rgw-v385",
  "modified": "2026-08-15T06:32:30Z",
  "published": "2026-08-15T06:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74327"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55a44f5259e6a5f1d5b11cb0e19e943c9cc62280"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1bca6b69bd934e2731d009e645038e05d57ce59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af71c2b88ccae44418e273bdfe0c96be8515151e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b86f98e53df4f5d57259817b8e9a00167b78bae6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbd664b7c77f6488cd5652231c0fe01d069a73ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c741485fa09bf5900f76d95424d86316d0a00331"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74327 (GCVE-0-2026-74327)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:17

Title

vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

Summary

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix NULL pointer dereference in is_vm_area_hugepages() find_vm_area() can return NULL if the given address is not a valid vmalloc area. Check the return value before dereferencing it to avoid a kernel crash.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/c741485fa09bf5900…
https://git.kernel.org/stable/c/b86f98e53df4f5d57…
https://git.kernel.org/stable/c/af71c2b88ccae4441…
https://git.kernel.org/stable/c/a1bca6b69bd934e27…
https://git.kernel.org/stable/c/bbd664b7c77f6488c…
https://git.kernel.org/stable/c/55a44f5259e6a5f1d…
https://git.kernel.org/stable/c/c55dd3b46c1208d6d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < c741485fa09bf5900f76d95424d86316d0a00331 (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < b86f98e53df4f5d57259817b8e9a00167b78bae6 (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < af71c2b88ccae44418e273bdfe0c96be8515151e (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < a1bca6b69bd934e2731d009e645038e05d57ce59 (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < bbd664b7c77f6488cd5652231c0fe01d069a73ea (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < 55a44f5259e6a5f1d5b11cb0e19e943c9cc62280 (git) Affected: 121e6f3258fe393e22c36f61a319be8a4f2c05ae , < c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8 (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/vmalloc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c741485fa09bf5900f76d95424d86316d0a00331",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "b86f98e53df4f5d57259817b8e9a00167b78bae6",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "af71c2b88ccae44418e273bdfe0c96be8515151e",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "a1bca6b69bd934e2731d009e645038e05d57ce59",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "bbd664b7c77f6488cd5652231c0fe01d069a73ea",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "55a44f5259e6a5f1d5b11cb0e19e943c9cc62280",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            },
            {
              "lessThan": "c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8",
              "status": "affected",
              "version": "121e6f3258fe393e22c36f61a319be8a4f2c05ae",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/vmalloc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmalloc: fix NULL pointer dereference in is_vm_area_hugepages()\n\nfind_vm_area() can return NULL if the given address is not a valid vmalloc\narea.  Check the return value before dereferencing it to avoid a kernel\ncrash."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:17:17.979Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c741485fa09bf5900f76d95424d86316d0a00331"
        },
        {
          "url": "https://git.kernel.org/stable/c/b86f98e53df4f5d57259817b8e9a00167b78bae6"
        },
        {
          "url": "https://git.kernel.org/stable/c/af71c2b88ccae44418e273bdfe0c96be8515151e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a1bca6b69bd934e2731d009e645038e05d57ce59"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbd664b7c77f6488cd5652231c0fe01d069a73ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/55a44f5259e6a5f1d5b11cb0e19e943c9cc62280"
        },
        {
          "url": "https://git.kernel.org/stable/c/c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8"
        }
      ],
      "title": "vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74327",
    "datePublished": "2026-08-15T05:58:21.665Z",
    "dateReserved": "2026-08-15T05:44:03.884Z",
    "dateUpdated": "2026-08-17T05:17:17.979Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-FCV5-2RGW-V385

CVE-2026-74327 (GCVE-0-2026-74327)

Tags

Sightings

Nomenclature