{"id":"CVE-2026-43219","state":"PUBLISHED","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.","publishedAt":"2026-05-06T11:28:20.243Z","updatedAt":"2026-07-04T11:50:36.668Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"da8e1623a3028e1d8c75eec7898d94c6f17dce40","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"23acc565186ee27e788408cbd81b92730b6aaa3a","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"67cca9df4d17f2c824655d31195b2e75334ae286","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"14645799ad5253a028cf662e2f9cd18a68f74b31","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"29739ec197ed66535bc0b86f14ab66c5f4512138","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"349c4cac6f54a81fc107589771f88136a2b20415","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"9d724b34fbe13b71865ad0906a4be97571f19cf5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ti/cpsw_new.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.210","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.176","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.93","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","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/ti/cpsw_new.c"]}],"references":["https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40","https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f","https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a","https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286","https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31","https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138","https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415","https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43219.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43219","state":"PUBLISHED","datePublished":"2026-05-06T11:28:20.243Z","dateUpdated":"2026-07-04T11:50:36.668Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.993Z"},"containers":{"cna":{"title":"net: cpsw_new: Fix potential unregister of netdev that has not been registered yet","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"da8e1623a3028e1d8c75eec7898d94c6f17dce40","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"23acc565186ee27e788408cbd81b92730b6aaa3a","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"67cca9df4d17f2c824655d31195b2e75334ae286","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"14645799ad5253a028cf662e2f9cd18a68f74b31","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"29739ec197ed66535bc0b86f14ab66c5f4512138","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"349c4cac6f54a81fc107589771f88136a2b20415","versionType":"git"},{"version":"ed3525eda4c4983fb8509e488de0a351788041ba","status":"affected","lessThan":"9d724b34fbe13b71865ad0906a4be97571f19cf5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ti/cpsw_new.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.210","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.176","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.93","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","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/ti/cpsw_new.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:36.668Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.260"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}