Vulnerability-Lookup

CVE-2026-80729 (GCVE-0-2026-80729)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:21 – Updated: 2026-09-03 08:21

Title

mm/huge_memory: initialise workingset state before folio split

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: initialise workingset state before folio split xas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but __folio_split() leaves the xa_state's xa_lru unset. That lets a live, memcg-charged xa_node exist without being linked into the mapping's shadow_nodes list_lru; when reclaim later walks the list_lru it trips VM_WARN_ON(!css_is_dying()). Use mapping_set_update() to install both the workingset update callback and the shadow_nodes list_lru on the xa_state.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/d858f7c9fc514f1d9…
https://git.kernel.org/stable/c/aca1f2d5de17e138b…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 58729c04cf1092b87aeef0bf0998c9e2e4771133 , < d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55 (git) Affected: 58729c04cf1092b87aeef0bf0998c9e2e4771133 , < aca1f2d5de17e138bc6c4859126b77e516b82541 (git)	guessed
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 7.1.9 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55",
              "status": "affected",
              "version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
              "versionType": "git"
            },
            {
              "lessThan": "aca1f2d5de17e138bc6c4859126b77e516b82541",
              "status": "affected",
              "version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "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": "7.1.9",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state\u0027s xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping\u0027s\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-03T08:21:47.722Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55"
        },
        {
          "url": "https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541"
        }
      ],
      "title": "mm/huge_memory: initialise workingset state before folio split",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80729",
    "datePublished": "2026-09-03T08:21:47.722Z",
    "dateReserved": "2026-08-26T14:34:25.789Z",
    "dateUpdated": "2026-09-03T08:21:47.722Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80729",
      "date": "2026-09-03",
      "epss": "0.00189",
      "percentile": "0.08583"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80729\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-03T13:06:11.417\",\"lastModified\":\"2026-09-03T13:06:11.417\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/huge_memory: initialise workingset state before folio split\\n\\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\\n__folio_split() leaves the xa_state\u0027s xa_lru unset.  That lets a live,\\nmemcg-charged xa_node exist without being linked into the mapping\u0027s\\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\\nVM_WARN_ON(!css_is_dying()).\\n\\nUse mapping_set_update() to install both the workingset update callback\\nand the shadow_nodes list_lru on the xa_state.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"mm/huge_memory.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"58729c04cf1092b87aeef0bf0998c9e2e4771133\",\"lessThan\":\"d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"58729c04cf1092b87aeef0bf0998c9e2e4771133\",\"lessThan\":\"aca1f2d5de17e138bc6c4859126b77e516b82541\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"mm/huge_memory.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.9\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-80729

Vulnerability from fkie_nvd - Published: 2026-09-03 13:06 - Updated: 2026-09-03 13:06

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55",
              "status": "affected",
              "version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
              "versionType": "git"
            },
            {
              "lessThan": "aca1f2d5de17e138bc6c4859126b77e516b82541",
              "status": "affected",
              "version": "58729c04cf1092b87aeef0bf0998c9e2e4771133",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/huge_memory.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state\u0027s xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping\u0027s\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state."
    }
  ],
  "id": "CVE-2026-80729",
  "lastModified": "2026-09-03T13:06:11.417",
  "metrics": {},
  "published": "2026-09-03T13:06:11.417",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

GHSA-P2P8-6FMX-RFJ9

Vulnerability from github – Published: 2026-09-03 15:32 – Updated: 2026-09-03 15:32

Details

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

mm/huge_memory: initialise workingset state before folio split

xas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but __folio_split() leaves the xa_state's xa_lru unset. That lets a live, memcg-charged xa_node exist without being linked into the mapping's shadow_nodes list_lru; when reclaim later walks the list_lru it trips VM_WARN_ON(!css_is_dying()).

Use mapping_set_update() to install both the workingset update callback and the shadow_nodes list_lru on the xa_state.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-80729"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-03T13:06:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: initialise workingset state before folio split\n\nxas_try_split() adds __GFP_ACCOUNT for page-cache xa_nodes, but\n__folio_split() leaves the xa_state\u0027s xa_lru unset.  That lets a live,\nmemcg-charged xa_node exist without being linked into the mapping\u0027s\nshadow_nodes list_lru; when reclaim later walks the list_lru it trips\nVM_WARN_ON(!css_is_dying()).\n\nUse mapping_set_update() to install both the workingset update callback\nand the shadow_nodes list_lru on the xa_state.",
  "id": "GHSA-p2p8-6fmx-rfj9",
  "modified": "2026-09-03T15:32:14Z",
  "published": "2026-09-03T15:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

CVE-2026-80729 (GCVE-0-2026-80729)

FKIE_CVE-2026-80729

GHSA-P2P8-6FMX-RFJ9

Tags

Sightings

Nomenclature