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CVE-2026-23084 (GCVE-0-2026-23084)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-09-08 08:44
VLAI
Title
be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list
Summary
In the Linux kernel, the following vulnerability has been resolved: be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is set to false, the driver may request the PMAC_ID from the firmware of the network card, and this function will store that PMAC_ID at the provided address pmac_id. This is the contract of this function. However, there is a location within the driver where both pmac_id_valid == false and pmac_id == NULL are being passed. This could result in dereferencing a NULL pointer. To resolve this issue, it is necessary to pass the address of a stub variable to the function.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 4cba480c9b9a3861a515262225cb53a1f5978344 (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 92c6dc181a18e6e0ddb872ed35cb48a9274829e4 (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 6c3e00888dbec887125a08b51a705b9b163fcdd1 (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < e206fb415db36bad52bb90c08d46ce71ffbe8a80 (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 47ffb4dcffe336f4a7bd0f3284be7aadc6484698 (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 31410a01a86bcb98c798d01061abf1f789c4f75a (git)
Affected: 95046b927a54f461766f83a212c6a93bc5fd2e67 , < 8215794403d264739cc676668087512950b2ff31 (git)
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Linux Linux Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 5.10.249 , ≤ 5.10.* (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:18:39+00:00",
      "cve": "CVE-2026-23084",
      "id": "CVE-2026-23084",
      "initial_release_date": "2026-02-04T00:00:00+00:00",
      "product_status:known_affected": "260",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23084.json",
      "version": "3"
    },
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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.

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.


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.