Description
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-switch: put MAC endpoint device on disconnect
fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The switch port connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object.
However, the disconnect path only closes the MAC and frees the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected.
Drop the endpoint device reference before freeing the dpaa2_mac object.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 84cba72956fddf29ba666f885c39ed147024c125, < 196f7301537814bef0f5915f87cd73d6d1235c19; >= 84cba72956fddf29ba666f885c39ed147024c125, < 0e9a6811eb6198ab17538cd01fa155d133b238ed; >= 84cba72956fddf29ba666f885c39ed147024c125, < 1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38; >= 84cba72956fddf29ba666f885c39ed147024c125, < 680eecc850d36a280df9780496bc603fec17b2d6; >= 84cba72956fddf29ba666f885c39ed147024c125, < 26ac2d3602347f0377fbcd5214bc28a9d735ae68; >= 84cba72956fddf29ba666f885c39ed147024c125, < c27694ff6748e08fcd2fdba89018439d75b8198f; >= 84cba72956fddf29ba666f885c39ed147024c125, < 4c1eabbef7a1707635652e956e39db1269c3af2b |
| Linux | Linux | 5.15 |
References
- https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed
- https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19
- https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38
- https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68
- https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b
- https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6
- https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f
Timeline
- Published
- Aug 10, 2026
- Last modified
- Aug 19, 2026
- NVD status
- Received