The vulnerability of the dmar_dev_scope_init() function in the drivers/iommu/dmar.c module of the Linux operating system’s IOMMU kernel driver allows a attacker to cause a service failure.

The vulnerability of the dmardevscopeinit function in the drivers/iommu/dmar.c module of the Linux kernel’s IOMMU support driver is related to the lack of memory release after the effective lifespan of the function. Exploiting this vulnerability could allow an attacker to trigger a service failur...

CVE-2022-49002 iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmardevscopeinit foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the...

CVE-2022-49002

The CVE-2022-49002 issue is in the Linux kernel’s IOMMU VT-d path. The for_each_pci_dev() loop relies on pci_get_device(), which increments the PCI device refcount, but an error path lacked a corresponding pci_dev_put(), leading to a potential reference-count leak. The fix adds pci_dev_put() in t...

CVE-2022-49002 iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmardevscopeinit foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the...

CVE-2022-49002: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmardevscopeinit foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the...

GSD-2023-1000236 iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()

iommu/vt-d: Fix PCI device refcount leak in dmardevscopeinit This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.158 by commit...

GSD-2023-1000068 iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()

iommu/vt-d: Fix PCI device refcount leak in dmardevscopeinit This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.12 by commit...