CVE-2022-48630 (GCVE-0-2022-48630)
Vulnerability from cvelistv5
Published
2024-03-05 11:18
Modified
2026-05-23 15:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ The commit referenced in the Fixes tag removed the 'break' from the else branch in qcom_rng_read(), causing an infinite loop whenever 'max' is not a multiple of WORD_SZ. This can be reproduced e.g. by running: kcapi-rng -b 67 >/dev/null There are many ways to fix this without adding back the 'break', but they all seem more awkward than simply adding it back, so do just that. Tested on a machine with Qualcomm Amberwing processor.
References
Impacted products
Vendor Product Version
Linux Linux Version: a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d
Version: 184f7bd08ce56f003530fc19f160d54e75bf5c9d
Version: 0f9b7b8df17525e464294c916acc8194ce38446b
Version: ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd
Version: a680b1832ced3b5fa7c93484248fd221ea0d614b
Version: a680b1832ced3b5fa7c93484248fd221ea0d614b
Version: 485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d
Version: 4.19.236   ≤
Version: 5.4.187   ≤
Version: 5.10.108   ≤
Version: 5.15.31   ≤
Version: 5.16.17   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48630",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-06T20:31:48.552545Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:16:45.256Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:17:55.579Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/qcom-rng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "71a89789552b7faf3ef27969b9bc783fa0df3550",
              "status": "affected",
              "version": "a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d",
              "versionType": "git"
            },
            {
              "lessThan": "8be06f62b426801dba43ddf8893952a0e62ab6ae",
              "status": "affected",
              "version": "184f7bd08ce56f003530fc19f160d54e75bf5c9d",
              "versionType": "git"
            },
            {
              "lessThan": "233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c",
              "status": "affected",
              "version": "0f9b7b8df17525e464294c916acc8194ce38446b",
              "versionType": "git"
            },
            {
              "lessThan": "8a06f25f5941c145773204f2f7abef95b4ffb8ce",
              "status": "affected",
              "version": "ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd",
              "versionType": "git"
            },
            {
              "lessThan": "05d4d17475d8d094c519bb51658bc47899c175e3",
              "status": "affected",
              "version": "a680b1832ced3b5fa7c93484248fd221ea0d614b",
              "versionType": "git"
            },
            {
              "lessThan": "16287397ec5c08aa58db6acf7dbc55470d78087d",
              "status": "affected",
              "version": "a680b1832ced3b5fa7c93484248fd221ea0d614b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d",
              "versionType": "git"
            },
            {
              "lessThan": "4.19.245",
              "status": "affected",
              "version": "4.19.236",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4.196",
              "status": "affected",
              "version": "5.4.187",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.118",
              "status": "affected",
              "version": "5.10.108",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.42",
              "status": "affected",
              "version": "5.15.31",
              "versionType": "semver"
            },
            {
              "lessThan": "5.17",
              "status": "affected",
              "version": "5.16.17",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/qcom-rng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.245",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.118",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.245",
                  "versionStartIncluding": "4.19.236",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.196",
                  "versionStartIncluding": "5.4.187",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.118",
                  "versionStartIncluding": "5.10.108",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.42",
                  "versionStartIncluding": "5.15.31",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.10",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.16.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ\n\nThe commit referenced in the Fixes tag removed the \u0027break\u0027 from the else\nbranch in qcom_rng_read(), causing an infinite loop whenever \u0027max\u0027 is\nnot a multiple of WORD_SZ. This can be reproduced e.g. by running:\n\n    kcapi-rng -b 67 \u003e/dev/null\n\nThere are many ways to fix this without adding back the \u0027break\u0027, but\nthey all seem more awkward than simply adding it back, so do just that.\n\nTested on a machine with Qualcomm Amberwing processor."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:20:25.489Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550"
        },
        {
          "url": "https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d"
        }
      ],
      "title": "crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48630",
    "datePublished": "2024-03-05T11:18:07.394Z",
    "dateReserved": "2024-02-25T13:44:28.315Z",
    "dateUpdated": "2026-05-23T15:20:25.489Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.