The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c in the Linux kernel through 4.15.8 does not validate certain resource availability, which allows local users to cause a denial of service (NULL pointer dereference).
4.4.0-1016.164.4.0-119.143~14.04.14.4.0-119.1434.4.0-1054.634.13.0-1014.174.13.0-1013.174.13.0-41.46~16.04.14.4.0-1021.264.13.0-1024.274.4.0-1087.95Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:NI:NA:HCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H