CVE-2026-98506

high

Description

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: do not dissolve gigantic pages without runtime support dissolve_free_hugetlb_folio() doesn't check hstate_is_gigantic_no_runtime(h) though remove_hugetlb_folio()/ update_and_free_hugetlb_folio() silently bail for such folios, so it frees a still-listed folio and, on vmemmap restore failure, the add_hugetlb_folio() rollback corrupts the free list.

References

https://git.kernel.org/stable/c/ddc1055b557506a6ea8930dfbd8d1555d6a3f01e

https://git.kernel.org/stable/c/ccf96a4b8626a001c13c5836d8357f31c57bbd8e

https://git.kernel.org/stable/c/a363c62a653cc8b3e21da9545fa4e028ef50f9c3

https://git.kernel.org/stable/c/443628f755b35bf45044f68b970b65cd531c42fd

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103746

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.002