CVE-2026-45862
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-362Race condition
How to fix
Update
- linux linux_kernel5.5, 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.4.237 ≤ v < 5.5, 5.10.175 ≤ v < 5.10.252, 5.15.103 ≤ v < 5.15.202, 6.1.16 ≤ v < 6.1.165, 6.2.3 ≤ v < 6.6.128, 6.7 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.14, 6.19 ≤ v < 6.19.4 | 5.5, 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 |
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