CVE-2021-47566 proc/vmcore: fix clearing user buffer by properly using clear_user()

In the Linux kernel, the following vulnerability has been resolved: proc/vmcore: fix clearing user buffer by properly using clearuser To clear a user buffer we cannot simply use memset, we have to use clearuser. With a virtio-mem device that registers a vmcorecb and has some logically unplugged...

Security Advisory - Information Disclosure Vulnerability about SWAPGS Instruction

An information disclosure vulnerability exists when certain x86-64-bit central processing units CPU speculatively access memory, this vulnerability uses the SWAPGS instruction in the CPU. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially...