CVE-2026-46142 (GCVE-0-2026-46142)
Vulnerability from cvelistv5
Published
2026-05-28 09:35
Modified
2026-06-14 17:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix VF illegal register access Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempting to read this register triggers an illegal register access, which lead to a system hang. When the device is VF, the bus function ID can be obtained directly from the PCI_FUNC(pdev->devfn).
Impacted products
Vendor Product Version
Linux Linux Version: d4187ec2641061748480cdc944fd07653fad50d5
Version: f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e
Version: a04ea57aae375bdda1cb57034d8bcbb351e1f973
Version: a04ea57aae375bdda1cb57034d8bcbb351e1f973
Version: a04ea57aae375bdda1cb57034d8bcbb351e1f973
Version: 93e52b75f11a8f39b22993ae315b5b9a6b2668a3
Version: 6.6.117   
Version: 6.12.58   
Version: 6.17.8   
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_hw.c"
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          "vendor": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.88",
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              "status": "unaffected",
              "version": "6.18.30",
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              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: fix VF illegal register access\n\nRegister WX_CFG_PORT_ST is a PF restricted register. When a VF is\ninitialized, attempting to read this register triggers an illegal\nregister access, which lead to a system hang.\n\nWhen the device is VF, the bus function ID can be obtained directly from\nthe PCI_FUNC(pdev-\u003edevfn)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:57:38.598Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0"
        },
        {
          "url": "https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92"
        },
        {
          "url": "https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d"
        },
        {
          "url": "https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562"
        }
      ],
      "title": "net: libwx: fix VF illegal register access",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46142",
    "datePublished": "2026-05-28T09:35:57.837Z",
    "dateReserved": "2026-05-13T15:03:33.100Z",
    "dateUpdated": "2026-06-14T17:57:38.598Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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