CVE-2024-40914
kernel: mm/huge_memory: don't unpoison huge_zero_folio
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 12, 2024
Updated · February 2, 2026
Description
A vulnerability was found in the Linux kernel's memory management component in the unpoison_memory() function, where it involves improper handling of huge_zero_folio when memory failures occur, which can lead to a kernel panic due to an erroneous reference count.
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-911 · Improper Update of Reference Count