CVE-2022-50659
hwrng: geode - Fix PCI device refcount leak
Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount 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. We add a new struct 'amd_geode_priv' to record pointer of the pci_dev and membase, and then add missing pci_dev_put() for the normal and error path.
INFO
Published Date :
Dec. 9, 2025, 1:29 a.m.
Last Modified :
Dec. 9, 2025, 1:29 a.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2022-50659
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Ensure all PCI device references are properly managed.
- Apply the patch for the hwrng geode driver.
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