CVE-2026-43219
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: net: cpsw_new: Fix potential unregister of netdev that has not been ...
Published: 2026-05-06 · Last updated: 2026-06-09
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-43219
- [Other]https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31
- [Patch]https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138
- [Patch]https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415
- [Patch]https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5
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