VULNERABILITY INTELLIGENCE

CVE-2026-45862

CVSS score7.8 HIGH
EPSS probability0.13%
CISA KEVNot currently listed
Published2026-05-27
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush cache for PASID table before using it When writing the address of a freshly allocated zero-initialized PASID table to a PASID directory entry, do that after the CPU cache flush for this PASID table, not before it, to avoid the time window when this PASID table may be already used by non-coherent IOMMU hardware while its contents in RAM is still some random old data, not zero-initialized.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-362

Primary references