CVE-2021-47177

CVE-2021-47177 is a kernel-level issue in the Linux IOMMU VT-d subsystem where iommu_device_sysfs_add() leaked sysfs state on error. The published description and connected advisories state that the leak occurs in alloc_iommu() and that the sysfs entry must be cleaned on subsequent errors; a fix ...

CVE-2021-47140

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Clear DMA ops when switching domain Since commit 08a27c1c3ecf "iommu: Add support to change default domain of an iommu group" a user can switch a device between IOMMU and direct DMA through sysfs. This doesn't work for...

CVE-2021-47140

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Clear DMA ops when switching domain Since commit 08a27c1c3ecf "iommu: Add support to change default domain of an iommu group" a user can switch a device between IOMMU and direct DMA through sysfs. This doesn't work for...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from a security issue with allociommu in iommu/vt-d...

CVE-2021-47177: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix sysfs leak in allociommu iommudevicesysfsadd is called before, so is has to be cleaned on subsequent errors...

CVE-2023-46840 VT-d: Failure to quarantine devices in !HVM builds

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen...

CVE-2023-46840 VT-d: Failure to quarantine devices in !HVM builds

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen...

SUSE CVE-2023-52559

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2023-52559

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2023-52559

CVE-2023-52559 concerns the Linux kernel iommu/vt-d suspension path. The issue arises because iommu_suspend() is called with IRQs disabled and memory could be allocated with GFP_KERNEL during the suspend callback, potentially re-enabling IRQs and causing intermittent suspend/hibernate problems. O...

CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2023-52559

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2023-52559: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommususpend The iommususpend syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFPKERNEL flag may re-enable IRQs during the suspend callback, which can cause...

CVE-2021-47035

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as t...

CVE-2021-47035

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as t...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as t...

CVE-2021-47035

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as t...

CVE-2021-47035

The CVE-2021-47035 entry concerns a Linux kernel IOMMU VT-d issue. The vulnerability was in how second-level paging entries were assigned permissions for IOVA translation: Write-Only permission was still being treated inconsistently with the first-level mappings. The fix removes the Write-Only co...

CVE-2021-47035 iommu/vt-d: Remove WO permissions on second-level paging entries

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as t...