High [CVE-2026-23097] Linux kernel: Denial of Service due to a deadlock in hugetlb folio migration
This high-severity Red Hat Linux advisory covers CVE-2026-23097 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 9.
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Summary
Linux kernel: Denial of Service due to a deadlock in hugetlb folio migration. Red Hat rates this moderate (CVSS 7.3).
Weakness: CWE-833. Affected package(s): kernel, kernel-rt.
Resolved in Red Hat advisory RHSA-2026:13936 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
- kernel-0:4.18.0-305.194.1.el8_4
- kernel-0:4.18.0-372.190.1.el8_6
- kernel-0:4.18.0-477.139.1.el8_8
- kernel-0:6.12.0-55.72.1.el10_0
- kernel-rt-0:5.14.0-70.178.1.rt21.250.el9_0
- kernel-0:5.14.0-427.121.1.el9_4
- kernel-0:6.12.0-124.43.1.el10_1
- kernel-0:5.14.0-570.110.1.el9_6
- kernel-0:5.14.0-70.178.1.el9_0
- kernel-rt-0:4.18.0-553.109.1.rt7.450.el8_10
- kernel-rt-0:5.14.0-284.169.1.rt14.454.el9_2
- kernel-0:4.18.0-553.109.1.el8_10
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:13936
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:13936 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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