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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-11472 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11472 Upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b2d69114fefa474fca542e51119036dceb4aa6f
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1473215]
Statement: This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 as the code with the flaw is not present in the products listed.
This was fixed for Fedora with the 4.12 rebases.