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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
84cba72956fddf29ba666f885c39ed147024c125 to < 196f7301537814bef0f5915f87cd73d6d1235c19affected84cba72956fddf29ba666f885c39ed147024c125 to < 0e9a6811eb6198ab17538cd01fa155d133b238edaffected84cba72956fddf29ba666f885c39ed147024c125 to < 1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38affected84cba72956fddf29ba666f885c39ed147024c125 to < 680eecc850d36a280df9780496bc603fec17b2d6affected84cba72956fddf29ba666f885c39ed147024c125 to < 26ac2d3602347f0377fbcd5214bc28a9d735ae68affected84cba72956fddf29ba666f885c39ed147024c125 to < c27694ff6748e08fcd2fdba89018439d75b8198faffected84cba72956fddf29ba666f885c39ed147024c125 to < 4c1eabbef7a1707635652e956e39db1269c3af2baffected
Linux Linux
Default version status: affected
5.15affected0 to < 5.15unaffected5.15.216 to ≤ 5.15.*unaffected6.1.183 to ≤ 6.1.*unaffected6.6.148 to ≤ 6.6.*unaffected6.12.101 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19 ↗
- https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed ↗
- https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38 ↗
- https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6 ↗
- https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68 ↗
- https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f ↗
- https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b ↗