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CVE-2022-50659

UnknownEPSS 0.23%

Last modified

CVE-2022-50659 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.23%

14.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= ef5d862734b84239e0140319a95fb0bbff5ef394, < 88f4ea623f59155280d99d1a59a968f838472c4a; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < e2f44baf62567c5cfbc274974c7d96dddad53ccc; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 6b9e43c4098f1310f5b4d52121d007a219fa5d43; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 5cc818ad53df650cac8fb41d9066665366af3f03; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < aa96aff394a511cc7bb7df08d1b8504d4d97671e; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 82bd423ed977847652b2048b0f8dcf049b1847a9; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 874f798c2db5ad595e46982d7f727a679dacb048; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 19b7b85773b18457ff85a9ff4f5e2a2d4bf7ed0c; >= ef5d862734b84239e0140319a95fb0bbff5ef394, < 9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445
LinuxLinux2.6.18

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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.
How severe is CVE-2022-50659?
Severity scoring for CVE-2022-50659 is pending analysis. The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2022-50659?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST