CVE-2026-43219
MEDIUM EPSS 2.8%
Published May 6, 20261mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
2.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Affected Products 2
References 4
- 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
Remediation
- 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