CVE-2026-23042 (GCVE-0-2026-23042)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:00 – Updated: 2026-02-09 08:37
VLAI?
Title
idpf: fix aux device unplugging when rdma is not supported by vport
Summary
In the Linux kernel, the following vulnerability has been resolved: idpf: fix aux device unplugging when rdma is not supported by vport If vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not allocate vdev_info for this vport. This leads to kernel NULL pointer dereference in idpf_idc_vport_dev_down(), which references vdev_info for every vport regardless. Check, if vdev_info was ever allocated before unplugging aux device.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: be91128c579c86d295da4325f6ac4710e4e6d2b4 , < 0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a (git)
Affected: be91128c579c86d295da4325f6ac4710e4e6d2b4 , < 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9 (git)
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    Linux Linux Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/idpf/idpf_idc.c"
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                  "versionStartIncluding": "6.17",
                  "vulnerable": true
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix aux device unplugging when rdma is not supported by vport\n\nIf vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not\nallocate vdev_info for this vport. This leads to kernel NULL pointer\ndereference in idpf_idc_vport_dev_down(), which references vdev_info for\nevery vport regardless.\n\nCheck, if vdev_info was ever allocated before unplugging aux device."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:37:37.195Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a"
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        {
          "url": "https://git.kernel.org/stable/c/4648fb2f2e7210c53b85220ee07d42d1e4bae3f9"
        }
      ],
      "title": "idpf: fix aux device unplugging when rdma is not supported by vport",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23042",
    "datePublished": "2026-02-04T16:00:25.466Z",
    "dateReserved": "2026-01-13T15:37:45.944Z",
    "dateUpdated": "2026-02-09T08:37:37.195Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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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