CVE-2026-90387 Linux Kernel - Memory Management Vulnerability

Linux kernel contains a memory management vulnerability caused by incorrect virtual address handling in swiotlb dynamic pools, letting attackers cause allocation failures or memory corruption, exploit requires kernel-level access.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to the latest Linux kernel version containing the fix for swiotlb virtual address handling.

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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