CVE-2026-43219
net: cpsw_new: Fix potential unregister of netdev that has not been registered yet
CVSS Score
0.0
EPSS Score
0.1%
EPSS Percentile
3th
In the Linux kernel, the following vulnerability has been resolved: net: cpsw_new: Fix potential unregister of netdev that has not been registered yet If an error occurs during register_netdev() for the first MAC in cpsw_register_ports(), even though cpsw->slaves[0].ndev is set to NULL, cpsw->slaves[1].ndev would remain unchanged. This could later cause cpsw_unregister_ports() to attempt unregistering the second MAC. To address this, add a check for ndev->reg_state before calling unregister_netdev(). With this change, setting cpsw->slaves[i].ndev to NULL becomes unnecessary and can be removed accordingly.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | Jun 19, 2026 |
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Affected Versions
Linux / Linux
ed3525eda4c4983fb8509e488de0a351788041ba < d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f ed3525eda4c4983fb8509e488de0a351788041ba < 23acc565186ee27e788408cbd81b92730b6aaa3a ed3525eda4c4983fb8509e488de0a351788041ba < 67cca9df4d17f2c824655d31195b2e75334ae286 ed3525eda4c4983fb8509e488de0a351788041ba < 14645799ad5253a028cf662e2f9cd18a68f74b31 ed3525eda4c4983fb8509e488de0a351788041ba < 29739ec197ed66535bc0b86f14ab66c5f4512138 ed3525eda4c4983fb8509e488de0a351788041ba < 349c4cac6f54a81fc107589771f88136a2b20415 ed3525eda4c4983fb8509e488de0a351788041ba < 9d724b34fbe13b71865ad0906a4be97571f19cf5
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f git.kernel.org: https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a git.kernel.org: https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286 git.kernel.org: https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31 git.kernel.org: https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138 git.kernel.org: https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415 git.kernel.org: https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5