Vulnerability-Lookup

FKIE_CVE-2026-23084

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-03-17 21:10

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

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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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbe2net: Correcci\u00f3n de desreferencia de puntero NULL en be_cmd_get_mac_from_list\n\nCuando el argumento del par\u00e1metro pmac_id_valid de be_cmd_get_mac_from_list() se establece en falso, el controlador puede solicitar el PMAC_ID del firmware de la tarjeta de red, y esta funci\u00f3n almacenar\u00e1 ese PMAC_ID en la direcci\u00f3n pmac_id proporcionada. Este es el contrato de esta funci\u00f3n.\n\nSin embargo, existe una ubicaci\u00f3n dentro del controlador donde se est\u00e1n pasando tanto pmac_id_valid == false como pmac_id == NULL. Esto podr\u00eda resultar en la desreferencia de un puntero NULL.\n\nPara resolver este problema, es necesario pasar la direcci\u00f3n de una variable auxiliar a la funci\u00f3n."
    }
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  "id": "CVE-2026-23084",
  "lastModified": "2026-03-17T21:10:34.050",
  "metrics": {
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          "attackVector": "LOCAL",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
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  "published": "2026-02-04T17:16:19.257",
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  "vulnStatus": "Analyzed",
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}

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

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-09 08:38

Title

be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4cba480c9b9a3861a…
	https://git.kernel.org/stable/c/92c6dc181a18e6e0d…
	https://git.kernel.org/stable/c/6c3e00888dbec8871…
	https://git.kernel.org/stable/c/e206fb415db36bad5…
	https://git.kernel.org/stable/c/47ffb4dcffe336f4a…
	https://git.kernel.org/stable/c/31410a01a86bcb98c…
	https://git.kernel.org/stable/c/8215794403d264739…

Impacted products

Vendor

Product

Version

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)

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)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/emulex/benet/be_cmds.c"
          ],
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        "dateUpdated": "2026-02-09T08:38:24.077Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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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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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23084",
    "datePublished": "2026-02-04T16:08:08.456Z",
    "dateReserved": "2026-01-13T15:37:45.960Z",
    "dateUpdated": "2026-02-09T08:38:24.077Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

FKIE_CVE-2026-23084

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

Tags

Sightings

Nomenclature