{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "64ee3cf096ac590e7da2ceac1c390546bff5e240"
            },
            {
              "fixed": "88752b811f72aa7a16de6dad4b25031d7308673e"
            },
            {
              "fixed": "eddd0159a8761a16a9d183676b03cf493417816e"
            },
            {
              "fixed": "bba13ad17b1a11b3f1ed9b3a5d556191d7755a59"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74491.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof/address: Fix NULL bus dereference in of_pci_range_parser_one()\n\nThe bus matching rework made of_match_bus() return NULL for nodes with\nranges/dma-ranges but no local #address-cells. parser_init() stored that\nNULL bus, and the range iterator later dereferenced it.\n\nReject such nodes in parser_init(), leaving an explicit empty\niterator for callers that ignore the init return, and make\nof_dma_get_max_cpu_address() honour the init failure so a rejected node\ncannot clamp the DMA limit.",
  "id": "CVE-2026-74491",
  "modified": "2026-08-17T03:36:12.148566792Z",
  "published": "2026-08-15T12:27:20.759Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88752b811f72aa7a16de6dad4b25031d7308673e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bba13ad17b1a11b3f1ed9b3a5d556191d7755a59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eddd0159a8761a16a9d183676b03cf493417816e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74491.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74491"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "of/address: Fix NULL bus dereference in of_pci_range_parser_one()"
}