{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c"
            },
            {
              "fixed": "2c7ff651ec6b660c7c96a36db9328b3232f555d8"
            },
            {
              "fixed": "ec0874447895b994182a962d2fee9ef075de5efd"
            },
            {
              "fixed": "2662ed331a69c0b551f78af58f12eb629a89a36f"
            },
            {
              "fixed": "31c4c67dec3362094a6747a171a4848e98542265"
            },
            {
              "fixed": "01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d"
            },
            {
              "fixed": "4caae8168d1b808c7d4ff481295292e3f97f90fb"
            },
            {
              "fixed": "f50b39fd7c72a8734153644ee945ca0d8b2e65ab"
            },
            {
              "fixed": "fcd7f96c783626c07ee3ed75fa3739a8a2052310"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.18.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.167"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.130"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.77"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.16"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43281.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()\n\nAlthough it is guided that `#mbox-cells` must be at least 1, there are\nmany instances of `#mbox-cells = \u003c0\u003e;` in the device tree. If that is\nthe case and the corresponding mailbox controller does not provide\n`fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will\nbe used by default and out-of-bounds accesses could occur due to lack of\nbounds check in that function.",
  "id": "CVE-2026-43281",
  "modified": "2026-07-08T05:38:11.011616423Z",
  "published": "2026-05-06T11:29:02.278Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43281.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43281"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()"
}