CVE-2026-97525 Linux Kernel - Memory Management Issue

Linux kernel contains a memory management vulnerability caused by improper allocation and marking of split page tables in x86/mm/pat, letting attackers cause stale IOTLB cache entries leading to potential system instability, exploit requires kernel page table manipulation.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Memory Management Issue
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026

Vendor fix

Update to the Linux kernel version including commit 5ba2f0a15564 or later where the issue is fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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