CVE-2026-53338 (GCVE-0-2026-53338)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-01 13:32
VLAI
Title
net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues() of_reserved_mem_lookup() may return NULL if the reserved memory region referenced by the "memory-region" phandle is not found in the reserved memory table (e.g. due to a misconfigured DTS or a removed memory-region node). The current code dereferences the returned pointer without checking for NULL, leading to a kernel NULL pointer dereference at the following lines: dma_addr = rmem->base; // line 1156 num_desc = div_u64(rmem->size, buf_size); // line 1160 Add a NULL check after of_reserved_mem_lookup() and return -ENODEV if the lookup fails, which is consistent with the existing error handling for of_parse_phandle() failure in the same code block.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < 01f7d4b504580664d36faea5671cde5e3f0d8a5b (git)
Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < cdb96c42db7b256348f9b57718debfaa4bca6b39 (git)
Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < f9f25118faa4dd2b6e3d14a03d123bbdbd59925d (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/airoha/airoha_eth.c"
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          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-01T13:32:21.147Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39"
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          "url": "https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d"
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      "title": "net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53338",
    "datePublished": "2026-07-01T13:32:21.147Z",
    "dateReserved": "2026-06-09T07:44:35.399Z",
    "dateUpdated": "2026-07-01T13:32:21.147Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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