CVE-2022-50246None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 5e85a04c8c0d271d7561a770b85741f186398868 < 4f257e2eba419ab4cd880c822346450e4e7b2af3Linux >= 5e85a04c8c0d271d7561a770b85741f186398868 < d3b6c28a71f111a6c67ddc3238aab95910fd86cfLinux >= 5e85a04c8c0d271d7561a770b85741f186398868 < ba75be6f0d9d028d20852564206565a4c03e3288Linux >= 5e85a04c8c0d271d7561a770b85741f186398868 < e75a324409715bd71348f79a49aa61b69dbeb676Linux >= 5e85a04c8c0d271d7561a770b85741f186398868 < 5f125507d2270035dfcf83fbff6cff5a143e200cLinux >= 5e85a04c8c0d271d7561a770b85741f186398868 < 0384e87e3fec735e47f1c133c796f32ef7a72a9bLinux 4.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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