Red Hat OpenShift: CVE-2019-12819: kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c
An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.
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