Tracker / CVE-2022-49000
CVE-2022-49000
Medium 5.5
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.0 → 5.10.158 |
| linux | linux_kernel · 5.11 → 5.15.82 |
| linux | linux_kernel · 5.16 → 6.0.12 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.