Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ed3525eda4c4983fb8509e488de0a351788041ba before da8e1623a3028e1d8c75eec7898d94c6f17dce40; affected ed3525eda4c4983fb8509e488de0a351788041ba before d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f; affected ed3525eda4c4983fb8509e488de0a351788041ba before 23acc565186ee27e788408cbd81b92730b6aaa3a; affected ed3525eda4c4983fb8509e488de0a351788041ba before 67cca9df4d17f2c824655d31195b2e75334ae286; affected ed3525eda4c4983fb8509e488de0a351788041ba before 14645799ad5253a028cf662e2f9cd18a68f74b31; affected ed3525eda4c4983fb8509e488de0a351788041ba before 29739ec197ed66535bc0b86f14ab66c5f4512138; affected ed3525eda4c4983fb8509e488de0a351788041ba before 349c4cac6f54a81fc107589771f88136a2b20415; affected ed3525eda4c4983fb8509e488de0a351788041ba before 9d724b34fbe13b71865ad0906a4be97571f19cf5 |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.260 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.93 through 6.12.*; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/da8e1623a3028e1d8c75eec7898d94c6f17dce40
- https://git.kernel.org/stable/c/d31a12cee10bbc12b4b523a4709fd1fdee8b7d0f
- https://git.kernel.org/stable/c/23acc565186ee27e788408cbd81b92730b6aaa3a
- https://git.kernel.org/stable/c/67cca9df4d17f2c824655d31195b2e75334ae286
- https://git.kernel.org/stable/c/14645799ad5253a028cf662e2f9cd18a68f74b31
- https://git.kernel.org/stable/c/29739ec197ed66535bc0b86f14ab66c5f4512138
- https://git.kernel.org/stable/c/349c4cac6f54a81fc107589771f88136a2b20415
- https://git.kernel.org/stable/c/9d724b34fbe13b71865ad0906a4be97571f19cf5