{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b"
            },
            {
              "fixed": "01f7d4b504580664d36faea5671cde5e3f0d8a5b"
            },
            {
              "fixed": "cdb96c42db7b256348f9b57718debfaa4bca6b39"
            },
            {
              "fixed": "f9f25118faa4dd2b6e3d14a03d123bbdbd59925d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53338.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()\n\nof_reserved_mem_lookup() may return NULL if the reserved memory region\nreferenced by the \"memory-region\" phandle is not found in the reserved\nmemory table (e.g. due to a misconfigured DTS or a removed\nmemory-region node).  The current code dereferences the returned\npointer without checking for NULL, leading to a kernel NULL pointer\ndereference at the following lines:\n\n    dma_addr = rmem-\u003ebase;                          // line 1156\n    num_desc = div_u64(rmem-\u003esize, buf_size);       // line 1160\n\nAdd a NULL check after of_reserved_mem_lookup() and return -ENODEV if\nthe lookup fails, which is consistent with the existing error handling\nfor of_parse_phandle() failure in the same code block.",
  "id": "CVE-2026-53338",
  "modified": "2026-07-08T05:36:53.468077588Z",
  "published": "2026-07-01T13:32:21.147Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01f7d4b504580664d36faea5671cde5e3f0d8a5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53338.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53338"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()"
}