Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up sidomain in the initdmars error path A splat from kmemcachedestroy was observed in a previous version of the kernel commit ee2653bbe89d, “iommu/vt-d: Remove domain and devinfo mempool” when there was a failur...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid using NULL after WARNONONCE. There is a WARNONONCE to catch an unlikely situation where domainremovedevpasid cannot find the pasid. If this still happens, we must avoid using a NULL pointer...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Use device rbtree in the iopf reporting path. The existing I/O page fault handler currently locates the PCI device by calling pcigetdomainbusandslot. This function searches the list of all PCI devices until the desire...

SUSE CVE-2026-45944

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-2026-45945

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement The Intel VT-d PASID table entry is 512 bits 64 bytes. When replacing an active PASID entry e.g., during domain replacement, the current implementation calculates a ne...

CVE-2026-45894

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...

UBUNTU-CVE-2026-45894

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...

CVE-2026-45945 iommu/vt-d: Fix race condition during PASID entry replacement

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement The Intel VT-d PASID table entry is 512 bits 64 bytes. When replacing an active PASID entry e.g., during domain replacement, the current implementation calculates a ne...

CVE-2026-45945

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement The Intel VT-d PASID table entry is 512 bits 64 bytes. When replacing an active PASID entry e.g., during domain replacement, the current implementation calculates a ne...

CVE-2026-45894

The CVE-2026-45894 issue affects the Linux kernel IOMMU VT-d Scalable Mode PASID handling. When a PASID table entry is torn down, the current code zeros the full 64-byte structure while P=1, risking a torn read if hardware fetches the 64 bytes concurrently. Mitigation directs an ownership handsha...

CVE-2026-45894 iommu/vt-d: Clear Present bit before tearing down PASID entry

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...

CVE-2026-45862

The CVE-2026-45862 issue concerns the Linux kernel’s IOMMU VT-d PASID handling. A flaw in the cache flush order when writing a freshly allocated zero-initialized PASID table to a PASID directory entry creates a time window during which non-coherent IOMMU hardware could access RAM contents that ar...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the iommu/vt-d driver failing to clear the Present bit when removing context entries. This can le...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from race conditions in the iommu/vt-d driver during PASID entry replacement. This can lead to...

CVE-2026-45945

iommu/vt-d: Fix race condition during PASID entry replacement...

Linux Distros Unpatched Vulnerability : CVE-2026-45862

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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,...

Linux Distros Unpatched Vulnerability : CVE-2026-45894

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an...

Linux Distros Unpatched Vulnerability : CVE-2026-45944

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 usi...

PT-2026-43811

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 tearing down a context entry involves zeroing a 128-bit entry using multiple 64-bit writes. This process can create a window where...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021566)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021566 advisory. In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up sidomain in the initdmars error path A splat from kmemcachedestroy was seen...