Vulnerability-Lookup

GHSA-JQ95-P6V7-8MXR

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

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

bnge: return after auxiliary_device_uninit() in error path

When auxiliary_device_add() fails, the error block calls auxiliary_device_uninit() but does not return. The uninit drops the last reference and synchronously runs bnge_aux_dev_release(), which sets bd->auxr_dev = NULL and frees the underlying object. The subsequent bd->auxr_dev->net = bd->netdev then dereferences NULL, which is not a good thing to have happen when trying to clean up from an error.

Add the missing return, as the auxiliary bus documentation states is a requirement (seems that LLM tools read documentation better than humans do...)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31621"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:41Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: return after auxiliary_device_uninit() in error path\n\nWhen auxiliary_device_add() fails, the error block calls\nauxiliary_device_uninit() but does not return.  The uninit drops the\nlast reference and synchronously runs bnge_aux_dev_release(), which sets\nbd-\u003eauxr_dev = NULL and frees the underlying object.  The subsequent\nbd-\u003eauxr_dev-\u003enet = bd-\u003enetdev then dereferences NULL, which is not a\ngood thing to have happen when trying to clean up from an error.\n\nAdd the missing return, as the auxiliary bus documentation states is a\nrequirement (seems that LLM tools read documentation better than humans\ndo...)",
  "id": "GHSA-jq95-p6v7-8mxr",
  "modified": "2026-04-24T15:32:35Z",
  "published": "2026-04-24T15:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31621"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38c383ec6d37f4b5597f8e6a1f5c2ab31ea01d3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87bc3557c708110d83086bf091328271298a44e3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31621 (GCVE-0-2026-31621)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-24 14:42

Title

bnge: return after auxiliary_device_uninit() in error path

Summary

In the Linux kernel, the following vulnerability has been resolved: bnge: return after auxiliary_device_uninit() in error path When auxiliary_device_add() fails, the error block calls auxiliary_device_uninit() but does not return. The uninit drops the last reference and synchronously runs bnge_aux_dev_release(), which sets bd->auxr_dev = NULL and frees the underlying object. The subsequent bd->auxr_dev->net = bd->netdev then dereferences NULL, which is not a good thing to have happen when trying to clean up from an error. Add the missing return, as the auxiliary bus documentation states is a requirement (seems that LLM tools read documentation better than humans do...)

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/38c383ec6d37f4b55…
	https://git.kernel.org/stable/c/87bc3557c708110d8…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 38c383ec6d37f4b5597f8e6a1f5c2ab31ea01d3a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 87bc3557c708110d83086bf091328271298a44e3 (git)

Linux

Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnge/bnge_auxr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "38c383ec6d37f4b5597f8e6a1f5c2ab31ea01d3a",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "87bc3557c708110d83086bf091328271298a44e3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnge/bnge_auxr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: return after auxiliary_device_uninit() in error path\n\nWhen auxiliary_device_add() fails, the error block calls\nauxiliary_device_uninit() but does not return.  The uninit drops the\nlast reference and synchronously runs bnge_aux_dev_release(), which sets\nbd-\u003eauxr_dev = NULL and frees the underlying object.  The subsequent\nbd-\u003eauxr_dev-\u003enet = bd-\u003enetdev then dereferences NULL, which is not a\ngood thing to have happen when trying to clean up from an error.\n\nAdd the missing return, as the auxiliary bus documentation states is a\nrequirement (seems that LLM tools read documentation better than humans\ndo...)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:42:39.274Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/38c383ec6d37f4b5597f8e6a1f5c2ab31ea01d3a"
        },
        {
          "url": "https://git.kernel.org/stable/c/87bc3557c708110d83086bf091328271298a44e3"
        }
      ],
      "title": "bnge: return after auxiliary_device_uninit() in error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31621",
    "datePublished": "2026-04-24T14:42:39.274Z",
    "dateReserved": "2026-03-09T15:48:24.123Z",
    "dateUpdated": "2026-04-24T14:42:39.274Z",
    "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

GHSA-JQ95-P6V7-8MXR

CVE-2026-31621 (GCVE-0-2026-31621)

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Sightings

Nomenclature