Informazioni sul CVE-2022-49002
iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()
CWE ID: N/A
Base Score (CVSS): N/A
CVE: CVE-2022-49002
Descrizione: In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak.
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Riferimenti esterni
- https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf
- https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2
- https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d
- https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f
- https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e
- https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7
- https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa
- https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3
Prodotti interessati
- Linux – Linux
- Linux – Linux