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CVE-2022-50868

Estado: AplazadaSin puntuar—

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.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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