Riskcovery

CVE-2022-50659

hwrng: geode - Fix PCI device refcount leak

State
Published
Severity
Not scored
Published
Dec 9, 2025
Updated
May 11, 2026
Reserved
Dec 9, 2025

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 88f4ea623f59155280d99d1a59a968f838472c4aAffected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before e2f44baf62567c5cfbc274974c7d96dddad53cccAffected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 6b9e43c4098f1310f5b4d52121d007a219fa5d43Affected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 5cc818ad53df650cac8fb41d9066665366af3f03Affected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before aa96aff394a511cc7bb7df08d1b8504d4d97671eAffected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 82bd423ed977847652b2048b0f8dcf049b1847a9Affected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 874f798c2db5ad595e46982d7f727a679dacb048Affected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 19b7b85773b18457ff85a9ff4f5e2a2d4bf7ed0cAffected
  • ef5d862734b84239e0140319a95fb0bbff5ef394 to before 9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445Affected
LinuxLinux
  • 2.6.18Affected
  • before 2.6.18Not affected
  • 4.9.337 through 4.9.*Not affected
  • 4.14.303 through 4.14.*Not affected
  • 4.19.270 through 4.19.*Not affected
  • 5.4.229 through 5.4.*Not affected
  • 5.10.163 through 5.10.*Not affected
  • 5.15.86 through 5.15.*Not affected
  • 6.0.16 through 6.0.*Not affected
  • 6.1.2 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

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