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

Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2025-12-30 12:15
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
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)
Create a notification for this product.
    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)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.337",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.303",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.270",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.86",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:15:39.211Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc"
        },
        {
          "url": "https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760"
        },
        {
          "url": "https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f"
        },
        {
          "url": "https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212"
        },
        {
          "url": "https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d"
        },
        {
          "url": "https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d"
        }
      ],
      "title": "hwrng: amd - Fix PCI device refcount leak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50868",
    "datePublished": "2025-12-30T12:15:39.211Z",
    "dateReserved": "2025-12-30T12:06:07.136Z",
    "dateUpdated": "2025-12-30T12:15:39.211Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50868\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:01.643\",\"lastModified\":\"2025-12-30T13:16:01.643\",\"vulnStatus\":\"Received\",\"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.\"}],\"metrics\":{},\"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\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.