Description
In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci: fix of node refcount leak in tcpci_register_port() I got the following report while doing device(mt6370-tcpc) load test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled: OF: ERROR: memory leak, expected refcount 1 instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@34/tcpc/connector The 'fwnode' set in tcpci_parse_config() which is called in tcpci_register_port(), its node refcount is increased in device_get_named_child_node(). It needs be put while exiting, so call fwnode_handle_put() in the error path of tcpci_register_port() and in tcpci_unregister_port() to avoid leak.
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
5e85a04c8c0d271d7561a770b85741f186398868 to < 4f257e2eba419ab4cd880c822346450e4e7b2af3affected5e85a04c8c0d271d7561a770b85741f186398868 to < d3b6c28a71f111a6c67ddc3238aab95910fd86cfaffected5e85a04c8c0d271d7561a770b85741f186398868 to < ba75be6f0d9d028d20852564206565a4c03e3288affected5e85a04c8c0d271d7561a770b85741f186398868 to < e75a324409715bd71348f79a49aa61b69dbeb676affected5e85a04c8c0d271d7561a770b85741f186398868 to < 5f125507d2270035dfcf83fbff6cff5a143e200caffected5e85a04c8c0d271d7561a770b85741f186398868 to < 0384e87e3fec735e47f1c133c796f32ef7a72a9baffected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected5.4.229 to ≤ 5.4.*unaffected5.10.163 to ≤ 5.10.*unaffected5.15.86 to ≤ 5.15.*unaffected6.0.16 to ≤ 6.0.*unaffected6.1.2 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/4f257e2eba419ab4cd880c822346450e4e7b2af3 ↗
- https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf ↗
- https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288 ↗
- https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676 ↗
- https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c ↗
- https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b ↗