{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46142", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.100Z", "datePublished": "2026-05-28T09:35:57.837Z", "dateUpdated": "2026-06-14T17:57:38.598Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:57:38.598Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_hw.c"], "versions": [{"version": "d4187ec2641061748480cdc944fd07653fad50d5", "lessThan": "d3bd8040497968f6f5470018724ef7b0df92f707", "status": "affected", "versionType": "git"}, {"version": "f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e", "lessThan": "f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0", "status": "affected", "versionType": "git"}, {"version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973", "lessThan": "33c5bb50b9c40e8451e6aec4487a31d794b98d92", "status": "affected", "versionType": "git"}, {"version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973", "lessThan": "68a007a701bc06fa426507c551ef12514f2e721d", "status": "affected", "versionType": "git"}, {"version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973", "lessThan": "694de316f607fe2473d52ca0707e3918e72c1562", "status": "affected", "versionType": "git"}, {"version": "93e52b75f11a8f39b22993ae315b5b9a6b2668a3", "status": "affected", "versionType": "git"}, {"version": "6.6.117", "lessThan": "6.6.140", "status": "affected", "versionType": "semver"}, {"version": "6.12.58", "lessThan": "6.12.88", "status": "affected", "versionType": "semver"}, {"version": "6.17.8", "lessThan": "6.18", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_hw.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "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"}]}]}], "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"}}}}

{}

{"cveTags": [], "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)."}], "id": "CVE-2026-46142", "lastModified": "2026-05-28T13:44:01.663", "metrics": {}, "published": "2026-05-28T10:16:29.790", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net: libwx: fix VF illegal register access", "id": "2482572", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482572"}, "csaw": false, "cwe": "CWE-1220", "details": ["A flaw was found in the Linux kernel's `libwx` network driver. When a Virtual Function (VF) is initialized, it attempts to read a Physical Function (PF) restricted register, `WX_CFG_PORT_ST`. This illegal register access can lead to a system hang, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-46142", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46142\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46142\nhttps://lore.kernel.org/linux-cve-announce/2026052820-CVE-2026-46142-52bf@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4187ec2641061748480cdc944fd07653fad50d5,d3bd8040497968f6f5470018724ef7b0df92f707)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e,f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a04ea57aae375bdda1cb57034d8bcbb351e1f973,33c5bb50b9c40e8451e6aec4487a31d794b98d92)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a04ea57aae375bdda1cb57034d8bcbb351e1f973,68a007a701bc06fa426507c551ef12514f2e721d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a04ea57aae375bdda1cb57034d8bcbb351e1f973,694de316f607fe2473d52ca0707e3918e72c1562)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "93e52b75f11a8f39b22993ae315b5b9a6b2668a3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.117,6.6.140)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.58,6.12.88)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.17.8,6.18)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.140,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.88,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.30,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.7,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-28T11:45:16.114438+00:00", "updated": "2026-05-29T01:45:26.551626+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-1220", "CWE-269"]}