Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.5, < 6.18.16 |
References
- https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31
- https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a
- https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138Patch
- https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415Patch
- https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286
- https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5Patch
- https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f
- https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40
FAQ
What is CVE-2026-43219?
CVE-2026-43219 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2026-43219?
CVE-2026-43219 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43219?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.