{"api_version":"1","generated_at":"2026-06-04T17:43:21+00:00","cve":"CVE-2026-46142","urls":{"html":"https://cve.report/CVE-2026-46142","api":"https://cve.report/api/cve/CVE-2026-46142.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46142","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46142"},"summary":{"title":"net: libwx: fix VF illegal register access","description":"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->devfn).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:29","updated_at":"2026-05-28 13:44:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0","name":"https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562","name":"https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707","name":"https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d","name":"https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92","name":"https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46142","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46142","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d4187ec2641061748480cdc944fd07653fad50d5 d3bd8040497968f6f5470018724ef7b0df92f707 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a04ea57aae375bdda1cb57034d8bcbb351e1f973 33c5bb50b9c40e8451e6aec4487a31d794b98d92 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a04ea57aae375bdda1cb57034d8bcbb351e1f973 68a007a701bc06fa426507c551ef12514f2e721d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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->devfn)."}],"providerMetadata":{"dateUpdated":"2026-05-28T09:35:57.837Z","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":"2026-05-28T09:35:57.837Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:29","lastModifiedDate":"2026-05-28 13:44:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46142","Ordinal":"1","Title":"net: libwx: fix VF illegal register access","CVE":"CVE-2026-46142","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46142","Ordinal":"1","NoteData":"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->devfn).","Type":"Description","Title":"net: libwx: fix VF illegal register access"}]}}}