FKIE_CVE-2022-50868

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 05:24
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/hw_random/amd-rng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f1c97f72ffd504f49882774e2ab689d982dc7afc",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "526c316948819d3ecd2bb20fe5e2580c51a1b760",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "e246f5eff26055bdcb61a2cc99c50af72a19680f",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "1199f8e02941b326c60ab71a63002b7c80e38212",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "5998e5c30e839f73e62cb29e0d9617b0d16ccba3",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "2b79a5e560779b35e1164d57ae35c48b43373082",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "cb348c7908631dd9f60083a0a1542eab055d3edf",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "2e10ecd012ae2b2a374b34f307e9bc1e6096c03d",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            },
            {
              "lessThan": "ecadb5b0111ea19fc7c240bb25d424a94471eb7d",
              "status": "affected",
              "version": "96d63c0297ccfd6d9059c614b3f5555d9441a2b3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/hw_random/amd-rng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.18"
            },
            {
              "lessThan": "2.6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.303",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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."
    }
  ],
  "id": "CVE-2022-50868",
  "lastModified": "2026-06-17T05:24:19.437",
  "metrics": {},
  "published": "2025-12-30T13:16:01.643",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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