The acpi_ns_terminate() function in drivers/acpi/acpica/nsutils.c in the Linux kernel before 4.12 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:HA:N7.1/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N