CVE-2022-50659

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.

The following products are affected by CVE-2022-50659 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-50659.

URL	Resource
https://git.kernel.org/stable/c/19b7b85773b18457ff85a9ff4f5e2a2d4bf7ed0c
https://git.kernel.org/stable/c/5cc818ad53df650cac8fb41d9066665366af3f03
https://git.kernel.org/stable/c/6b9e43c4098f1310f5b4d52121d007a219fa5d43
https://git.kernel.org/stable/c/82bd423ed977847652b2048b0f8dcf049b1847a9
https://git.kernel.org/stable/c/874f798c2db5ad595e46982d7f727a679dacb048
https://git.kernel.org/stable/c/88f4ea623f59155280d99d1a59a968f838472c4a
https://git.kernel.org/stable/c/9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445
https://git.kernel.org/stable/c/aa96aff394a511cc7bb7df08d1b8504d4d97671e
https://git.kernel.org/stable/c/e2f44baf62567c5cfbc274974c7d96dddad53ccc
https://lore.kernel.org/linux-cve-announce/2025120942-CVE-2022-50659-8205@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-50659
https://www.cve.org/CVERecord?id=CVE-2022-50659