Use-after-free

kernel is vulnerable to use-after-free vulnerability. It is possible due to a flaw in the function mdiobusregister in drivers/net/phy/mdiobus.c...

Design/Logic Flaw

An issue was discovered in the Linux kernel before 5.0. The function mdiobusregister in drivers/net/phy/mdiobus.c calls putdevice, which will trigger a fixedmdiobusinit use-after-free. This will cause a denial of service...