CVE-2026-98224 (GCVE-0-2026-98224)
Vulnerability from cvelistv5
Published
2026-10-06 08:44
Modified
2026-10-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/vma: correctly unaccount on mmap_prepare() failure __mmap_setup() accounts memory for relevant mappings via: security_vm_enough_memory_mm() -> __vm_enough_memory() -> vm_acct_memory() If __mmap_setup() fails, this indicates that this accounting did not take place, and thus it's appropriate for __mmap_region() to jump to abort_munmap. However if call_mmap_prepare() fails, it also jumps there and any accounted memory is not correctly unaccounted. Fix this by handling each error separately.
References
Impacted products
Vendor Product Version
Linux Linux Version: c84bf6dd2b836b49bb2662668ff1692350d28236
Version: c84bf6dd2b836b49bb2662668ff1692350d28236
Version: c84bf6dd2b836b49bb2662668ff1692350d28236
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/vma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb5400bff669c8bad3d4ec09287d9b461e89e5f1",
              "status": "affected",
              "version": "c84bf6dd2b836b49bb2662668ff1692350d28236",
              "versionType": "git"
            },
            {
              "lessThan": "8fdc521d438fbf0d22c13d51d55d5dd82d7202b2",
              "status": "affected",
              "version": "c84bf6dd2b836b49bb2662668ff1692350d28236",
              "versionType": "git"
            },
            {
              "lessThan": "6cc27d82196385fe06853319f74312a7d8019726",
              "status": "affected",
              "version": "c84bf6dd2b836b49bb2662668ff1692350d28236",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/vma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vma: correctly unaccount on mmap_prepare() failure\n\n__mmap_setup() accounts memory for relevant mappings via:\n\nsecurity_vm_enough_memory_mm()\n  -\u003e __vm_enough_memory()\n    -\u003e vm_acct_memory()\n\nIf __mmap_setup() fails, this indicates that this accounting did not take\nplace, and thus it\u0027s appropriate for __mmap_region() to jump to\nabort_munmap.\n\nHowever if call_mmap_prepare() fails, it also jumps there and any accounted\nmemory is not correctly unaccounted.\n\nFix this by handling each error separately."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:15:56.109Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb5400bff669c8bad3d4ec09287d9b461e89e5f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/8fdc521d438fbf0d22c13d51d55d5dd82d7202b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/6cc27d82196385fe06853319f74312a7d8019726"
        }
      ],
      "title": "mm/vma: correctly unaccount on mmap_prepare() failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98224",
    "datePublished": "2026-10-06T08:44:59.349Z",
    "dateReserved": "2026-09-25T10:25:14.327Z",
    "dateUpdated": "2026-10-19T09:15:56.109Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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