CVE - CVE-2022-49002

CVE-ID
CVE-2022-49002	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa URL:https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa MISC:https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3 URL:https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3 MISC:https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2 URL:https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2 MISC:https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d URL:https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d MISC:https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e URL:https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e MISC:https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7 URL:https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7 MISC:https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f URL:https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f MISC:https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf URL:https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf
Assigning CNA
kernel.org
Date Record Created
20240822	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240822)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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