Ubuntu Security Notice 4093-1 - It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information. Various other issues were also addressed.
972368dcf6177d5f57f6c9563b2ca592739590e4dce2d1505555c8bf5670da14