PT-2026-43812 · Git+4 · Kernel+109
CVE-2026-45945
·
Published
2026-05-27
·
Updated
2026-06-16
CVSS v3.1
8.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A race condition exists in the Intel VT-d PASID table entry replacement process. The PASID table entry is 512 bits, and the implementation copies a new entry to the table using a single structure assignment. Since hardware may fetch this entry in multiple 128-bit chunks, updating an active entry (where the Present bit is set) can result in a torn read. This allows the IOMMU hardware to observe an inconsistent state containing both old and new data, potentially causing unpredictable behavior or spurious faults. The issue involves the
intel pasid get entry() and pasid pte config first level() functions.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Kernel
Linux
Linux-Allwinner-5.19
Linux-Aws
Linux-Aws-5.0
Linux-Aws-5.11
Linux-Aws-5.13
Linux-Aws-5.19
Linux-Aws-5.3
Linux-Aws-5.8
Linux-Aws-6.14
Linux-Aws-6.17
Linux-Aws-6.2
Linux-Aws-6.5
Linux-Azure
Linux-Azure-5.11
Linux-Azure-5.13
Linux-Azure-5.19
Linux-Azure-5.3
Linux-Azure-5.8
Linux-Azure-6.11
Linux-Azure-6.14
Linux-Azure-6.17
Linux-Azure-6.2
Linux-Azure-6.5
Linux-Azure-Edge
Linux-Azure-Fde
Linux-Azure-Fde-5.19
Linux-Azure-Fde-6.14
Linux-Azure-Fde-6.17
Linux-Azure-Fde-6.2
Linux-Azure-Nvidia-6.14
Linux-Bluefield
Linux-Gcp
Linux-Gcp-5.11
Linux-Gcp-5.13
Linux-Gcp-5.19
Linux-Gcp-5.3
Linux-Gcp-5.8
Linux-Gcp-6.11
Linux-Gcp-6.14
Linux-Gcp-6.17
Linux-Gcp-6.2
Linux-Gcp-6.5
Linux-Gke
Linux-Gke-4.15
Linux-Gkeop-5.15
Linux-Gke-5.4
Linux-Gkeop
Linux-Hwe
Linux-Hwe-5.11
Linux-Hwe-5.13
Linux-Hwe-5.19
Linux-Hwe-5.8
Linux-Hwe-6.11
Linux-Hwe-6.14
Linux-Hwe-6.17
Linux-Hwe-6.2
Linux-Hwe-6.5
Linux-Hwe-Edge
Linux-Intel-5.13
Linux-Intel-Iot-Realtime
Linux-Lowlatency-Hwe-5.19
Linux-Lowlatency-Hwe-6.11
Linux-Lowlatency-Hwe-6.2
Linux-Lowlatency-Hwe-6.5
Linux-Lts
Linux-Nvidia-6.11
Linux-Nvidia-6.17
Linux-Nvidia-6.2
Linux-Nvidia-6.5
Linux-Oem
Linux-Oem-5.10
Linux-Oem-5.13
Linux-Oem-5.14
Linux-Oem-5.17
Linux-Oem-5.6
Linux-Oem-6.0
Linux-Oem-6.1
Linux-Oem-6.11
Linux-Oem-6.14
Linux-Oem-6.17
Linux-Oem-6.5
Linux-Oem-6.8
Linux-Oracle
Linux-Oracle-5.0
Linux-Oracle-5.11
Linux-Oracle-5.13
Linux-Oracle-5.3
Linux-Oracle-5.8
Linux-Oracle-6.14
Linux-Oracle-6.17
Linux-Oracle-6.5
Linux-Raspi
Linux-Raspi-Realtime
Linux-Raspi2
Linux-Realtime
Linux-Realtime-6.14
Linux-Realtime-6.17
Linux-Riscv
Linux-Riscv-5.11
Linux-Riscv-5.19
Linux-Riscv-5.8
Linux-Riscv-6.14
Linux-Riscv-6.17
Linux-Riscv-6.5
Linux-Starfive-5.19
Linux-Starfive-6.2
Linux-Starfive-6.5
Linux Kernel