{"api_version":"1","generated_at":"2026-07-23T19:01:17+00:00","cve":"CVE-2026-43219","urls":{"html":"https://cve.report/CVE-2026-43219","api":"https://cve.report/api/cve/CVE-2026-43219.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43219","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43219"},"summary":{"title":"net: cpsw_new: Fix potential unregister of netdev that has not been registered yet","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cpsw_new: Fix potential unregister of netdev that has not been registered yet\n\nIf an error occurs during register_netdev() for the first MAC in\ncpsw_register_ports(), even though cpsw->slaves[0].ndev is set to NULL,\ncpsw->slaves[1].ndev would remain unchanged. This could later cause\ncpsw_unregister_ports() to attempt unregistering the second MAC.\nTo address this, add a check for ndev->reg_state before calling\nunregister_netdev(). With this change, setting cpsw->slaves[i].ndev\nto NULL becomes unnecessary and can be removed accordingly.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 12:16:41","updated_at":"2026-07-04 12:16:56"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a","name":"https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286","name":"https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5","name":"https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f","name":"https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40","name":"https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31","name":"https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415","name":"https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138","name":"https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43219","name":"CVE 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the Linux kernel, the following vulnerability has been resolved:\n\nnet: cpsw_new: Fix potential unregister of netdev that has not been registered yet\n\nIf an error occurs during register_netdev() for the first MAC in\ncpsw_register_ports(), even though cpsw->slaves[0].ndev is set to NULL,\ncpsw->slaves[1].ndev would remain unchanged. This could later cause\ncpsw_unregister_ports() to attempt unregistering the second MAC.\nTo address this, add a check for ndev->reg_state before calling\nunregister_netdev(). With this change, setting cpsw->slaves[i].ndev\nto NULL becomes unnecessary and can be removed accordingly."}],"providerMetadata":{"dateUpdated":"2026-07-04T11:50:36.668Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40"},{"url":"https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f"},{"url":"https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a"},{"url":"https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286"},{"url":"https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31"},{"url":"https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138"},{"url":"https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415"},{"url":"https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5"}],"title":"net: cpsw_new: Fix potential unregister of netdev that has not been registered yet","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43219","datePublished":"2026-05-06T11:28:20.243Z","dateReserved":"2026-05-01T14:12:55.993Z","dateUpdated":"2026-07-04T11:50:36.668Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 12:16:41","lastModifiedDate":"2026-07-04 12:16:56","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.16","matchCriteriaId":"59AFA620-05EF-48C6-B742-D356BCBE7D2F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43219","Ordinal":"1","Title":"net: cpsw_new: Fix potential unregister of netdev that has not b","CVE":"CVE-2026-43219","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43219","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cpsw_new: Fix potential unregister of netdev that has not been registered yet\n\nIf an error occurs during register_netdev() for the first MAC in\ncpsw_register_ports(), even though cpsw->slaves[0].ndev is set to NULL,\ncpsw->slaves[1].ndev would remain unchanged. This could later cause\ncpsw_unregister_ports() to attempt unregistering the second MAC.\nTo address this, add a check for ndev->reg_state before calling\nunregister_netdev(). With this change, setting cpsw->slaves[i].ndev\nto NULL becomes unnecessary and can be removed accordingly.","Type":"Description","Title":"net: cpsw_new: Fix potential unregister of netdev that has not b"}]}}}