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CVE-2022-50659 PUBLISHED

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.

EPSS 0.05% · 15.3th percentile

Risk Scores

EPSS Score
0.05%
15.3th percentile

Affected Products

VendorProductVersions
linuxlinux_kernel2.6.18, 2.6.18, 2.6.18
LinuxLinux2.6.18, 0, 4.9.337

Timeline

References

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