CVE-2022-50659 (GCVE-0-2022-50659)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29
VLAI?
Title
hwrng: geode - Fix PCI device refcount leak
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 88f4ea623f59155280d99d1a59a968f838472c4a (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < e2f44baf62567c5cfbc274974c7d96dddad53ccc (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 6b9e43c4098f1310f5b4d52121d007a219fa5d43 (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 5cc818ad53df650cac8fb41d9066665366af3f03 (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < aa96aff394a511cc7bb7df08d1b8504d4d97671e (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 82bd423ed977847652b2048b0f8dcf049b1847a9 (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 874f798c2db5ad595e46982d7f727a679dacb048 (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 19b7b85773b18457ff85a9ff4f5e2a2d4bf7ed0c (git)
Affected: ef5d862734b84239e0140319a95fb0bbff5ef394 , < 9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445 (git)
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    Linux Linux Affected: 2.6.18
Unaffected: 0 , < 2.6.18 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/char/hw_random/geode-rng.c"
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              "status": "unaffected",
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445"
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      "title": "hwrng: geode - Fix PCI device refcount leak",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50659",
    "datePublished": "2025-12-09T01:29:07.236Z",
    "dateReserved": "2025-12-09T01:26:45.989Z",
    "dateUpdated": "2025-12-09T01:29:07.236Z",
    "state": "PUBLISHED"
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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