CVE-2025-38050
kernel: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 18, 2025
Updated · August 3, 2026
Description
A flaw was found in the Linux kernel's huge page (hugetlb) memory management. A local user could exploit a race condition that occurs when the system attempts to replace free hugetlb folios. This can lead to a NULL pointer dereference, causing the kernel to crash and resulting in a denial of service for the affected system.
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
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference