Vulnerability-Lookup

GHSA-6MJW-J4C8-CFGQ

Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-12-03 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()

rxq can be NULL only when trans_pcie->rxq is NULL and entry->entry is zero. For the case when entry->entry is not equal to 0, rxq won't be NULL even if trans_pcie->rxq is NULL. Modify checker to check for trans_pcie->rxq.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-53251"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:52Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()\n\nrxq can be NULL only when trans_pcie-\u003erxq is NULL and entry-\u003eentry\nis zero. For the case when entry-\u003eentry is not equal to 0, rxq\nwon\u0027t be NULL even if trans_pcie-\u003erxq is NULL. Modify checker to\ncheck for trans_pcie-\u003erxq.",
  "id": "GHSA-6mjw-j4c8-cfgq",
  "modified": "2025-12-03T18:30:20Z",
  "published": "2025-09-15T15:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53251"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1902f1953b8ba100ee8705cb8a6f1a9795550eca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d690495eb2766d58e25c83676f422219c4fcf18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/390e44efcf4d390b5053ad112553155d2d097c73"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f71d0fc407dd028416bec002ddcc62f5acb0346a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53251 (GCVE-0-2023-53251)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:46 – Updated: 2026-05-11 19:41

Title

wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler() rxq can be NULL only when trans_pcie->rxq is NULL and entry->entry is zero. For the case when entry->entry is not equal to 0, rxq won't be NULL even if trans_pcie->rxq is NULL. Modify checker to check for trans_pcie->rxq.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 18:00 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/3b9de981fe7f1c6e0…
https://git.kernel.org/stable/c/2d690495eb2766d58…
https://git.kernel.org/stable/c/390e44efcf4d390b5…
https://git.kernel.org/stable/c/f71d0fc407dd02841…
https://git.kernel.org/stable/c/1902f1953b8ba100e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: abc599efa67bb4138536360e07d677052b19e392 , < 3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2 (git) Affected: abc599efa67bb4138536360e07d677052b19e392 , < 2d690495eb2766d58e25c83676f422219c4fcf18 (git) Affected: abc599efa67bb4138536360e07d677052b19e392 , < 390e44efcf4d390b5053ad112553155d2d097c73 (git) Affected: abc599efa67bb4138536360e07d677052b19e392 , < f71d0fc407dd028416bec002ddcc62f5acb0346a (git) Affected: abc599efa67bb4138536360e07d677052b19e392 , < 1902f1953b8ba100ee8705cb8a6f1a9795550eca (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.121 , ≤ 5.15.* (semver) Unaffected: 6.1.39 , ≤ 6.1.* (semver) Unaffected: 6.3.13 , ≤ 6.3.* (semver) Unaffected: 6.4.4 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53251",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:00:25.796184Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:02:52.107Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/iwlwifi/pcie/rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2",
              "status": "affected",
              "version": "abc599efa67bb4138536360e07d677052b19e392",
              "versionType": "git"
            },
            {
              "lessThan": "2d690495eb2766d58e25c83676f422219c4fcf18",
              "status": "affected",
              "version": "abc599efa67bb4138536360e07d677052b19e392",
              "versionType": "git"
            },
            {
              "lessThan": "390e44efcf4d390b5053ad112553155d2d097c73",
              "status": "affected",
              "version": "abc599efa67bb4138536360e07d677052b19e392",
              "versionType": "git"
            },
            {
              "lessThan": "f71d0fc407dd028416bec002ddcc62f5acb0346a",
              "status": "affected",
              "version": "abc599efa67bb4138536360e07d677052b19e392",
              "versionType": "git"
            },
            {
              "lessThan": "1902f1953b8ba100ee8705cb8a6f1a9795550eca",
              "status": "affected",
              "version": "abc599efa67bb4138536360e07d677052b19e392",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/iwlwifi/pcie/rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.121",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.39",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.13",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.4",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()\n\nrxq can be NULL only when trans_pcie-\u003erxq is NULL and entry-\u003eentry\nis zero. For the case when entry-\u003eentry is not equal to 0, rxq\nwon\u0027t be NULL even if trans_pcie-\u003erxq is NULL. Modify checker to\ncheck for trans_pcie-\u003erxq."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:41:10.094Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d690495eb2766d58e25c83676f422219c4fcf18"
        },
        {
          "url": "https://git.kernel.org/stable/c/390e44efcf4d390b5053ad112553155d2d097c73"
        },
        {
          "url": "https://git.kernel.org/stable/c/f71d0fc407dd028416bec002ddcc62f5acb0346a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1902f1953b8ba100ee8705cb8a6f1a9795550eca"
        }
      ],
      "title": "wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53251",
    "datePublished": "2025-09-15T14:46:20.886Z",
    "dateReserved": "2025-09-15T14:19:21.849Z",
    "dateUpdated": "2026-05-11T19:41:10.094Z",
    "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.