CVE-2022-49016

In the Linux kernel, the following vulnerability has been resolved: net: mdiobus: fix unbalanced node reference count I got the following report while doing device(mscc-miim) 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 /spi/soc@0/mdio@7107009c/ethernet-phy@0 If the 'fwnode' is not an acpi node, the refcount is get in fwnode_mdiobus_phy_device_register(), but it has never been put when the device is freed in the normal path. So call fwnode_handle_put() in phy_device_release() to avoid leak. If it's an acpi node, it has never been get, but it's put in the error path, so call fwnode_handle_get() before phy_device_register() to keep get/put operation balanced.

The following products are affected by CVE-2022-49016 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49016.

URL	Resource
https://git.kernel.org/stable/c/2708b357440427d6a9fee667eb7b8307f4625adc
https://git.kernel.org/stable/c/543d917f691ab06885ee779c862065899eaa4251
https://git.kernel.org/stable/c/cdde1560118f82498fc9e9a7c1ef7f0ef7755891
https://lore.kernel.org/linux-cve-announce/2024102153-CVE-2022-49016-c7bb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49016
https://www.cve.org/CVERecord?id=CVE-2022-49016