{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a30b48bf1b244f11bf9b6d20cdccfe0c2264130c"
            },
            {
              "fixed": "319caaca072adc564ac9c5357ed013909f23d5ab"
            },
            {
              "fixed": "cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72173.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc/task_mmu: do not warn on seeing non-migration pmd entry\n\nPatch series \"mm/hmm: A fix and a selftest\", v3.\n\nPatch 1 fixes a stale warning present from the time when only migration\nsoftleaf entries were supported at the PMD level.\n\nPatch 2 adds some code into hmm-tests.c which exercises the pagemap path\nfor PMD device-private entries.\n\n\nThis patch (of 2):\n\npagemap_pmd_range_thp() warns if a non-present PMD is not a migration\nentry.  This became false once device-private entries at the PMD level\nwere added.\n\nTherefore, remove the stale migration-only assertion.",
  "id": "CVE-2026-72173",
  "modified": "2026-08-18T03:31:24.458271024Z",
  "published": "2026-08-15T05:53:38.543Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/319caaca072adc564ac9c5357ed013909f23d5ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72173.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72173"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "fs/proc/task_mmu: do not warn on seeing non-migration pmd entry"
}