{"id":"CVE-2026-46142","state":"PUBLISHED","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).","publishedAt":"2026-05-28T09:35:57.837Z","updatedAt":"2026-06-14T17:57:38.598Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d4187ec2641061748480cdc944fd07653fad50d5","status":"affected","lessThan":"d3bd8040497968f6f5470018724ef7b0df92f707","versionType":"git"},{"version":"f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e","status":"affected","lessThan":"f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"33c5bb50b9c40e8451e6aec4487a31d794b98d92","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"68a007a701bc06fa426507c551ef12514f2e721d","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"694de316f607fe2473d52ca0707e3918e72c1562","versionType":"git"},{"version":"93e52b75f11a8f39b22993ae315b5b9a6b2668a3","status":"affected","versionType":"git"},{"version":"6.6.117","status":"affected","lessThan":"6.6.140","versionType":"semver"},{"version":"6.12.58","status":"affected","lessThan":"6.12.88","versionType":"semver"},{"version":"6.17.8","status":"affected","lessThan":"6.18","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/wangxun/libwx/wx_hw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.88","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.30","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.7","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/wangxun/libwx/wx_hw.c"]}],"references":["https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707","https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0","https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92","https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d","https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46142.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46142","state":"PUBLISHED","datePublished":"2026-05-28T09:35:57.837Z","dateUpdated":"2026-06-14T17:57:38.598Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.100Z"},"containers":{"cna":{"title":"net: libwx: fix VF illegal register access","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->devfn)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d4187ec2641061748480cdc944fd07653fad50d5","status":"affected","lessThan":"d3bd8040497968f6f5470018724ef7b0df92f707","versionType":"git"},{"version":"f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e","status":"affected","lessThan":"f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"33c5bb50b9c40e8451e6aec4487a31d794b98d92","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"68a007a701bc06fa426507c551ef12514f2e721d","versionType":"git"},{"version":"a04ea57aae375bdda1cb57034d8bcbb351e1f973","status":"affected","lessThan":"694de316f607fe2473d52ca0707e3918e72c1562","versionType":"git"},{"version":"93e52b75f11a8f39b22993ae315b5b9a6b2668a3","status":"affected","versionType":"git"},{"version":"6.6.117","status":"affected","lessThan":"6.6.140","versionType":"semver"},{"version":"6.12.58","status":"affected","lessThan":"6.12.88","versionType":"semver"},{"version":"6.17.8","status":"affected","lessThan":"6.18","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/wangxun/libwx/wx_hw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.88","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.30","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.7","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/wangxun/libwx/wx_hw.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-14T17:57:38.598Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.117","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.58","versionEndExcluding":"6.12.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}