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CVE-2022-50868 (GCVE-0-2022-50868)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2026-05-11 19:26
VLAI
Title
hwrng: amd - Fix PCI device refcount leak
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < f1c97f72ffd504f49882774e2ab689d982dc7afc (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < 526c316948819d3ecd2bb20fe5e2580c51a1b760 (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < e246f5eff26055bdcb61a2cc99c50af72a19680f (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < 1199f8e02941b326c60ab71a63002b7c80e38212 (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < 5998e5c30e839f73e62cb29e0d9617b0d16ccba3 (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < 2b79a5e560779b35e1164d57ae35c48b43373082 (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < cb348c7908631dd9f60083a0a1542eab055d3edf (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d (git)
Affected: 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 , < ecadb5b0111ea19fc7c240bb25d424a94471eb7d (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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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: amd - Fix PCI device refcount leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. Add the missing\npci_dev_put() for the normal and error path."
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    "cveId": "CVE-2022-50868",
    "datePublished": "2025-12-30T12:15:39.211Z",
    "dateReserved": "2025-12-30T12:06:07.136Z",
    "dateUpdated": "2026-05-11T19:26:40.801Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-03-04T15:32:49+00:00",
      "cve": "CVE-2022-50868",
      "id": "CVE-2022-50868",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "78",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Kernel: Denial of Service in AMD hwrng due to PCI device refcount leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50868.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:20:18Z",
      "cve": "CVE-2022-50868",
      "id": "CVE-2022-50868",
      "initial_release_date": "2025-12-31T00:30:54Z",
      "product_status:known_affected": "522",
      "product_status:known_not_affected": "155",
      "product_status:recommended": "233",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50868",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50868.json",
      "version": "28"
    }
  }
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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