arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.
No PoCs from references.
- https://github.com/thdusdl1219/CVE-Study
- https://github.com/vincent-deng/veracode-container-security-finding-parser