CVE-2026-98224 (GCVE-0-2026-98224)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
mm/vma: correctly unaccount on mmap_prepare() failure
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c84bf6dd2b836b49bb2662668ff1692350d28236 , < fb5400bff669c8bad3d4ec09287d9b461e89e5f1 (git)
Affected: c84bf6dd2b836b49bb2662668ff1692350d28236 , < 8fdc521d438fbf0d22c13d51d55d5dd82d7202b2 (git)
Affected: c84bf6dd2b836b49bb2662668ff1692350d28236 , < 6cc27d82196385fe06853319f74312a7d8019726 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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          "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": "2026-10-06T08:44:59.349Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2026-10-06T08:44:59.349Z",
    "dateReserved": "2026-09-25T10:25:14.327Z",
    "dateUpdated": "2026-10-06T08:44:59.349Z",
    "state": "PUBLISHED"
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          {
            "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."
          }
        ],
        "id": "CVE-2026-98224",
        "lastModified": "2026-10-06T09:18:09.427",
        "metrics": {},
        "published": "2026-10-06T09:18:09.427",
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      "cve": "CVE-2026-98224",
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      "product_status:known_affected": "77",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/vma: correctly unaccount on mmap_prepare() failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98224.json",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98224.json",
      "version": "2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

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