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.
Product status
ed3525eda4c4983fb8509e488de0a351788041ba (git) before 29739ec197ed66535bc0b86f14ab66c5f4512138
ed3525eda4c4983fb8509e488de0a351788041ba (git) before 349c4cac6f54a81fc107589771f88136a2b20415
ed3525eda4c4983fb8509e488de0a351788041ba (git) before 9d724b34fbe13b71865ad0906a4be97571f19cf5
5.5
Any version before 5.5
6.18.16 (semver)
6.19.6 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/29739ec197ed66535bc0b86f14ab66c5f4512138
git.kernel.org/...c/349c4cac6f54a81fc107589771f88136a2b20415
git.kernel.org/...c/9d724b34fbe13b71865ad0906a4be97571f19cf5