system
Describe <CVE-2015-3290>.
user
What is <CVE-2015-3290>?
assistant
arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window..