CVE-2021-47018
kernel: ensure definition of the fixmap area is in a limit
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 28, 2024
Updated · November 21, 2025
Description
A flaw was found in the Linux kernel. The fixmap area that was defined for the PPC64 architecture was invalid.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 3.2CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
CWE-20 · Improper Input Validation