A heap-based buffer overflow was discovered in the Linux kernel, all
versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The
flaw could occur when the station attempts a connection negotiation during
the handling of the remote devices country settings. This could allow the
remote device to cause a denial of service (system crash) or possibly
execute arbitrary code.

It was discovered that a heap-based buffer overflow existed in the Marvell
WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code.