CVE-2026-93230

Description

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: initialize gigantic bootmem hugepage struct pages earlier Gigantic bootmem HugeTLB pages are currently initialized from hugetlb_init(), but page_alloc_init_late() runs earlier and walks pageblocks to determine zone contiguity. If a bootmem HugeTLB region is marked noinit, set_zone_contiguous() can observe still-uninitialized struct pages through __pageblock_pfn_to_page(). This may not trigger an immediate failure, but it can make set_zone_contiguous() compute the wrong zone contiguity state. If extra poisoned-page checks are added in this path, such as PF_POISONED_CHECK() in page_zone_id(), it can also trigger an early boot panic. Initialize gigantic bootmem HugeTLB struct pages from page_alloc_init_late(), before zone contiguity is evaluated, so later page allocator setup only sees valid struct page state. This also makes the initialization order more natural, as struct pages should be initialized before later code inspects them.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: —
CVSS score: —
CVSS vector: —
Effective score: no score available from CNA, NVD, or AI yet
CWE(s): —
Reserved: 2026-09-17
Published: 2026-09-24 15:29 UTC
Last updated: 2026-09-24 15:29 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/93xxx/CVE-2026-93230.json

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European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-86235
Assigner: Linux
Published: Sep 24, 2026, 3:29:16 PM
Updated: Sep 24, 2026, 3:29:16 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0000
Vendors: Linux
Products: Linux (patch: 7.2.4)

Linux (6.7)

Linux (fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40 <29968bc7aefb3cf1e72aa7c5f52697a6b0527094)

Linux (fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40 <b1b7c045e808c761b1cc8c19b3040fadedda3fef)

Linux (patch: 6.18.51)

Linux (fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40 <09505232eced5f1c42902d8f28740f070c3fc6dc)

Linux (patch: 0)

Linux (patch: 7.3-rc1)
Aliases: GHSA-cvcw-r3xv-6h39

ENISA description: In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: initialize gigantic bootmem hugepage struct pages earlier Gigantic bootmem HugeTLB pages are currently initialized from hugetlb_init(), but page_alloc_init_late() runs earlier and walks pageblocks to determine zone contiguity. If a bootmem HugeTLB region is marked noinit, set_zone_contiguous() can observe still-uninitialized struct pages through __pageblock_pfn_to_page(). This may not trigger an immediate failure, but it can make set_zone_contiguous() compute the wrong zone contiguity state. If extra poisoned-page checks are added in this path, such as PF_POISONED_CHECK() in page_zone_id(), it can also trigger an early boot panic. Initialize gigantic bootmem HugeTLB struct pages from page_alloc_init_late(), before zone contiguity is evaluated, so later page allocator setup only sees valid struct page state. This also makes the initialization order more natural, as struct pages should be initialized before later code inspects them.

EUVD references (3)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40` (affected), `fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40` (affected), `fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40` (affected)	—
Linux	Linux	`6.7` (affected), `0` (unaffected), `6.18.51` (unaffected), `7.2.4` (unaffected), `7.3-rc1` (unaffected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

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No web references attached yet.

Remediations (10)

Patch Management and Mitigation Supported Product Versions

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Supported Product Versions and Operating Systems Learn more about the products and operating system versions that are supported for Qualys Patch Management and Mitigation . Supported Windows Products Supported Windows Operating Systems Supported Linux Operating Systems Supported Mac Products

2026-09-25 10:45 UTC
Adobe Security Bulletins and Advisories | Security

web:helpx.adobe.com

This page contains important information regarding security vulnerabilities that could affect specific versions of Adobe products. Use this information to take the prescribed corrective actions.

2026-09-25 10:45 UTC
VMware Telco Cloud response to VMSA-2026-0006 (CVE-2026-59309, CVE-2026 ...

web:knowledge.broadcom.com

VMware Telco Cloud response to VMSA- 2026 -0006 ( CVE - 2026 -59309, CVE - 2026 -59310, CVE - 2026 -47876, CVE - 2026 -41703, CVE - 2026 -41709) Patch Availability for VMware Telco Cloud Platform / Telco Cloud Infrastructure

2026-09-25 10:45 UTC
Security Update Guide - Microsoft

web:msrc-ppe.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-25 10:45 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-25 10:45 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-25 10:45 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed. You can choose the type of updates for which you want to be notified: Major ...

2026-09-25 10:45 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-25 10:45 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-25 10:45 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

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AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-93230.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/hugetlb.h",
            "mm/hugetlb.c",
            "mm/mm_init.c",
            "mm/sparse-vmemmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "09505232eced5f1c42902d8f28740f070c3fc6dc",
              "status": "affected",
              "version": "fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40",
              "versionType": "git"
            },
            {
              "lessThan": "29968bc7aefb3cf1e72aa7c5f52697a6b0527094",
              "status": "affected",
              "version": "fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40",
              "versionType": "git"
            },
            {
              "lessThan": "b1b7c045e808c761b1cc8c19b3040fadedda3fef",
              "status": "affected",
              "version": "fde1c4ecf91640e5a95ec36b71ec2e8ec379ce40",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/hugetlb.h",
            "mm/hugetlb.c",
            "mm/mm_init.c",
            "mm/sparse-vmemmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: initialize gigantic bootmem hugepage struct pages earlier\n\nGigantic bootmem HugeTLB pages are currently initialized from\nhugetlb_init(), but page_alloc_init_late() runs earlier and walks\npageblocks to determine zone contiguity.\n\nIf a bootmem HugeTLB region is marked noinit, set_zone_contiguous() can\nobserve still-uninitialized struct pages through\n__pageblock_pfn_to_page().  This may not trigger an immediate failure, but\nit can make set_zone_contiguous() compute the wrong zone contiguity state.\nIf extra poisoned-page checks are added in this path, such as\nPF_POISONED_CHECK() in page_zone_id(), it can also trigger an early boot\npanic.\n\nInitialize gigantic bootmem HugeTLB struct pages from\npage_alloc_init_late(), before zone contiguity is evaluated, so later page\nallocator setup only sees valid struct page state.  This also makes the\ninitialization order more natural, as struct pages should be initialized\nbefore later code inspects them."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T15:29:16.067Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/09505232eced5f1c42902d8f28740f070c3fc6dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/29968bc7aefb3cf1e72aa7c5f52697a6b0527094"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1b7c045e808c761b1cc8c19b3040fadedda3fef"
        }
      ],
      "title": "mm/hugetlb: initialize gigantic bootmem hugepage struct pages earlier",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93230",
    "datePublished": "2026-09-24T15:29:16.067Z",
    "dateReserved": "2026-09-17T16:02:15.094Z",
    "dateUpdated": "2026-09-24T15:29:16.067Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}