CVE-2026-43219
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138
https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415
https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5