CVE-2022-49000 (GCVE-0-2022-49000)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2025-05-04 08:27
VLAI?
Title
iommu/vt-d: Fix PCI device refcount leak in has_external_pci()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 89a6079df791aeace2044ea93be1b397195824ec , < 10ed7655a17f6a3eaecd1293830488259ccd5723 (git)
Affected: 89a6079df791aeace2044ea93be1b397195824ec , < b6eea8b2e858a20ad58ac62dc2de90fea2413f94 (git)
Affected: 89a6079df791aeace2044ea93be1b397195824ec , < 17f67414718e6aba123335a33b7d15aa594fff34 (git)
Affected: 89a6079df791aeace2044ea93be1b397195824ec , < afca9e19cc720bfafc75dc5ce429c185ca93f31d (git)
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    Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.10.158 , ≤ 5.10.* (semver)
Unaffected: 5.15.82 , ≤ 5.15.* (semver)
Unaffected: 6.0.12 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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