mm/mincore: handle non-swap entries before !CONFIG_SWAP guard

{
  "id": "ee5ad0cf0ff8adbc820d02c2616926126b79cf61cbce3b79a745ee1325467a53",
  "url": "https://osv.dev/vulnerability/CVE-2026-53333",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm/mincore: handle non-swap entries before !CONFIG_SWAP guard",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIG_SWAP guard mincore_swap() also fields migration/hwpoison entries (and shmem swapin-error entries), which can exist on !CONFIG_SWAP builds when CONFIG_MIGRATION or CONFIG_MEMORY_FAILURE is enabled. The !IS_ENABLED(CONFIG_SWAP) guard ran before the non-swap-entry early return, so mincore_pte_range() can spuriously WARN and report these pages nonresident on !CONFIG_SWAP kernels. Move the guard below the non-swap-entry check so only true swap entries trip the WARN, and migration/hwpoison entries take the existing \"uptodate / non-shmem\" path.",
    "evidence": "osv:CVE-2026-53333",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.36",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-53333",
      "aliases": [
        "CVE-2026-53333"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1f2052755c152940c336918bd73d13d5468f548b"
                },
                {
                  "fixed": "a8f91ddf67f669f547bb9fb559738da6f8ee2cf3"
                },
                {
                  "fixed": "3481d4372ae34243f7025925314385b852c50f7e"
                },
                {
                  "fixed": "0c25b8734367574e21aeb8468c2e522713134da7"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53333.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.36"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.13"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53333.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.387390036Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0c25b8734367574e21aeb8468c2e522713134da7",
        "https://git.kernel.org/stable/c/3481d4372ae34243f7025925314385b852c50f7e",
        "https://git.kernel.org/stable/c/a8f91ddf67f669f547bb9fb559738da6f8ee2cf3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53333.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53333",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53333.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53333",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 508819,
  "published_at": "2026-07-01T13:32:16.852+00:00"
}