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

Vulnerability from cvelistv5 – Published: 2025-09-15 14:46 – Updated: 2026-05-11 19:41
VLAI
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.
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
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: abc599efa67bb4138536360e07d677052b19e392 , < 3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2 (git)
Affected: abc599efa67bb4138536360e07d677052b19e392 , < 2d690495eb2766d58e25c83676f422219c4fcf18 (git)
Affected: abc599efa67bb4138536360e07d677052b19e392 , < 390e44efcf4d390b5053ad112553155d2d097c73 (git)
Affected: abc599efa67bb4138536360e07d677052b19e392 , < f71d0fc407dd028416bec002ddcc62f5acb0346a (git)
Affected: abc599efa67bb4138536360e07d677052b19e392 , < 1902f1953b8ba100ee8705cb8a6f1a9795550eca (git)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
Show details on NVD website

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              "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": "2025-09-15T14:46:20.886Z",
            "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": "2026-01-14T18:02:52.107Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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.

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Detection rules are retrieved from Rulezet.

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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.


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