CVE-2026-74327 (GCVE-0-2026-74327)
Vulnerability from cvelistv5
Published
2026-08-15 05:58
Modified
2026-08-17 05:17
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
Version: 121e6f3258fe393e22c36f61a319be8a4f2c05ae
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{
  "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": [
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
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          ],
          "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",
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                  "vulnerable": true
                },
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                },
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
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              ],
              "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"
}


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