Astra Linux – vulnerability in linux-6.12

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear the Present bit prior to tearing down a context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window during which...

SUSE CVE-2026-90243

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down copied context entry copiedcontextteardown zeroes the 128-bit context entry with contextclearentry while the Present bit is still set, and only then issues the context-cache and...

CVE-2026-90243: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down copied context entry copiedcontextteardown zeroes the 128-bit context entry with contextclearentry while the Present bit is still set, and only then issues the context-cache and...

PT-2026-94591

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the iommu/vt-d component where the copied context tear down function zeroes a 128-bit context entry using context clear entry while the Present bit remains set. Becaus...

CVE-2026-74439 iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry devicepasidtableteardown zeroes the 128-bit scalable-mode context entry with contextclearentry while the Present bit is still set. This creates a windo...

CVE-2026-74439

CVE-2026-74439 affects the Linux kernel IOMMU VT-d path. The vulnerability arises in device_pasid_table_teardown(), which zeroes a 128‑bit scalable‑mode context entry while the Present bit is still set. This creates a window where a torn entry could be fetched by the hardware with some fields alr...

CVE-2026-74439 iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry devicepasidtableteardown zeroes the 128-bit scalable-mode context entry with contextclearentry while the Present bit is still set. This creates a windo...

CVE-2026-74439: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry devicepasidtableteardown zeroes the 128-bit scalable-mode context entry with contextclearentry while the Present bit is still set. This creates a windo...

AZL-88749 CVE-2026-45944 affecting package kernel 6.6.161.1-1

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

CVE-2026-45944 iommu/vt-d: Clear Present bit before tearing down context entry

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

CVE-2026-45944: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...