Improper initialization in Linux kernel - CVE-2026-97525
Published: September 28, 2026
Vulnerability identifier: #VU152683
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97525
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to compromise confidentiality, integrity, and availability.
The vulnerability exists due to improper initialization in split page table allocation in __split_large_page() when CPA code splits a large page. A local privileged user can cause CPA code to split a large page to compromise confidentiality, integrity, and availability.
Stale IOTLB entries can remain after affected split page tables are freed.
Affected software
Linux kernel
How to mitigate CVE-2026-97525
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3