CVE-2026-53154
kernel: mm/hugetlb: restore reservation on error in hugetlb folio copy paths
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 25, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's huge page (hugetlb) memory management. When an error occurs during the copying of huge pages, the system fails to properly restore the memory reservation. This can lead to a leak of the virtual memory area (VMA) reservation. A local attacker could exploit this by performing specific memory operations, which may result in a denial of service (DoS) due, for example, to a task being terminated unexpectedly.
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-772 · Missing Release of Resource after Effective Lifetime