{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a32320b71f085f8d82afedcf285f1682c8c00aed"
            },
            {
              "fixed": "b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8"
            },
            {
              "fixed": "d91feb88692e81b00cd22f0125cfcd04970b4a0b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.3.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74273.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Block region delete during region creation\n\nExpand the range lock, rename it \"regions_lock\", to disable region deletion\nin the critical period between construct_region() and attach_target(), as\nwell as the period between device_add() and registering the remove actions.\n\nOtherwise, userspace can confuse the kernel. It can violate the assumption\nthe region stays registered through the completion of cxl_add_to_region().\nIt can violate the assumption that devm_add_action_or_reset() is working\nwith a live 'struct cxl_region'.\n\nIt is ok for the region to disappear outside of those windows as that\nmirrors device hotplug flows where the proper locks are held.",
  "id": "CVE-2026-74273",
  "modified": "2026-08-18T03:31:21.879806103Z",
  "published": "2026-08-15T05:57:46.134Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d91feb88692e81b00cd22f0125cfcd04970b4a0b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74273.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74273"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "cxl/region: Block region delete during region creation"
}