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FKIE_CVE-2026-80729

Vulnerability from fkie_nvd - Published: 2026-09-03 13:06 - Updated: 2026-09-03 13:06
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aca1f2d5de17e138bc6c4859126b77e516b82541
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d858f7c9fc514f1d9d3be7d00b2dd4e2f2383b55
Impacted products
Vendor Product Version
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"
}



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