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

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:33
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.
Assigner
References
Impacted products
Vendor Product Version
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-rc7 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/emulex/benet/be_cmds.c"
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      ],
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list\n\nWhen the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is\nset to false, the driver may request the PMAC_ID from the firmware of the\nnetwork card, and this function will store that PMAC_ID at the provided\naddress pmac_id. This is the contract of this function.\n\nHowever, there is a location within the driver where both\npmac_id_valid == false and pmac_id == NULL are being passed. This could\nresult in dereferencing a NULL pointer.\n\nTo resolve this issue, it is necessary to pass the address of a stub\nvariable to the function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T16:33:04.297Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344"
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        },
        {
          "url": "https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31"
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      ],
      "title": "be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list",
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  "cveMetadata": {
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    "cveId": "CVE-2026-23084",
    "datePublished": "2026-02-04T16:08:08.456Z",
    "dateReserved": "2026-01-13T15:37:45.960Z",
    "dateUpdated": "2026-02-06T16:33:04.297Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23084\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-04T17:16:19.257\",\"lastModified\":\"2026-02-06T17:16:23.983\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbe2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list\\n\\nWhen the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is\\nset to false, the driver may request the PMAC_ID from the firmware of the\\nnetwork card, and this function will store that PMAC_ID at the provided\\naddress pmac_id. This is the contract of this function.\\n\\nHowever, there is a location within the driver where both\\npmac_id_valid == false and pmac_id == NULL are being passed. This could\\nresult in dereferencing a NULL pointer.\\n\\nTo resolve this issue, it is necessary to pass the address of a stub\\nvariable to the function.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • 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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