Tracker / CVE-2022-48973
CVE-2022-48973
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: gpio: amd8111: Fix PCI device reference count leak 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() after the 'out' label. Since pci_dev_put() can handle NULL input parameter, there is no problem for the 'Device not found' branch. For the normal path, add pci_dev_put() in amd_gpio_exit().
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 3.6 → 4.9.336 |
| linux | linux_kernel · 4.10 → 4.14.302 |
| linux | linux_kernel · 4.15 → 4.19.269 |
| linux | linux_kernel · 4.20 → 5.4.227 |
| linux | linux_kernel · 5.11 → 5.15.83 |
| linux | linux_kernel · 5.16 → 6.0.13 |
| linux | linux_kernel · 5.5 → 5.10.159 |
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.