Vulnerability in Linux

CVE-2022-50868

In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - 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. Add the missing pci_dev_put() for the normal and error path.

EPSS: 0.002 (10.6th percentile) — read the EPSS interpretation.

Affected products

  • Linux — versions 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, 2.6.18, 0

References