CVE - CVE-2022-49000

CVE-ID
CVE-2022-49000	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 has_external_pci() 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() before 'return true' 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/10ed7655a17f6a3eaecd1293830488259ccd5723 URL:https://git.kernel.org/stable/c/10ed7655a17f6a3eaecd1293830488259ccd5723 MISC:https://git.kernel.org/stable/c/17f67414718e6aba123335a33b7d15aa594fff34 URL:https://git.kernel.org/stable/c/17f67414718e6aba123335a33b7d15aa594fff34 MISC:https://git.kernel.org/stable/c/afca9e19cc720bfafc75dc5ce429c185ca93f31d URL:https://git.kernel.org/stable/c/afca9e19cc720bfafc75dc5ce429c185ca93f31d MISC:https://git.kernel.org/stable/c/b6eea8b2e858a20ad58ac62dc2de90fea2413f94 URL:https://git.kernel.org/stable/c/b6eea8b2e858a20ad58ac62dc2de90fea2413f94
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
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)