Vulnerability-Lookup

GHSA-FXCH-PWP2-83J7

Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-01 15:35

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53338"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T14:16:41Z",
    "severity": null
  },
  "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": "GHSA-fxch-pwp2-83j7",
  "modified": "2026-07-01T15:35:19Z",
  "published": "2026-07-01T15:35:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53338"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-01 13:32

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

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/01f7d4b504580664d…
https://git.kernel.org/stable/c/cdb96c42db7b25634…
https://git.kernel.org/stable/c/f9f25118faa4dd2b6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < 01f7d4b504580664d36faea5671cde5e3f0d8a5b (git) Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < cdb96c42db7b256348f9b57718debfaa4bca6b39 (git) Affected: 3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b , < f9f25118faa4dd2b6e3d14a03d123bbdbd59925d (git)
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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/airoha/airoha_eth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "01f7d4b504580664d36faea5671cde5e3f0d8a5b",
              "status": "affected",
              "version": "3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b",
              "versionType": "git"
            },
            {
              "lessThan": "cdb96c42db7b256348f9b57718debfaa4bca6b39",
              "status": "affected",
              "version": "3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b",
              "versionType": "git"
            },
            {
              "lessThan": "f9f25118faa4dd2b6e3d14a03d123bbdbd59925d",
              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.16",
                  "vulnerable": true
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                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "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",
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        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d"
        }
      ],
      "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"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FXCH-PWP2-83J7

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

Tags

Sightings

Nomenclature